Health Insurance (Section 4BA - Pathologist-Determinable Services) Determination 2025

This instrument, the Health Insurance (Section 4BA - Pathologist-Determinable Services) Determination 2025, specifies which pathology services are to be treated as "pathologist-determinable services" for the purposes of section 4BA of the Health Insurance Act 1973. Mechanically, it performs three connected tasks.

First, it establishes a general rule in section 6 that a pathology service is a pathologist-determinable service where two conditions are met: the service is described in an item of the pathology services table, and the service is rendered, by or on behalf of, an approved pathology practitioner to a patient of that practitioner. This supplies an operational test tied to the pathology services table and to the relationship between the patient and the approved pathology practitioner.

Second, it creates an important exception or expansion in section 7 for services rendered where a different service was originally requested. Section 7 allows certain items in the pathology services table to be treated as pathologist-determinable where an approved pathology practitioner considers the additional service necessary on the basis of information learned from another service that was rendered to the patient and where the original request for that earlier service complied with paragraph 16A(4)(a) or (b) of the Health Insurance Act 1973. Section 7 then identifies, by item numbers, the precise items that may be rendered in this way and the originally requested items to which they relate. The instrument therefore creates specific item-to-item mappings where a pathologist may, on medical grounds learned from an initial test, proceed to perform a different listed test without repeating the initial requester process.

Third, the instrument contains narrow rules for particular item groups. Section 8 imposes an extra constraint for services described in items 69316, 69317, 69319, 69494, 69495, 69496, 69497 and 69498: the service is a pathologist-determinable service only if it is rendered by or on behalf of an approved pathology practitioner who is a recognised pathologist and the necessity is determined on one of three specified bases that tie back to services rendered under particular item numbers (69303, 69306, 69312, 69318, 69321 or 69345) and to requests that complied with paragraph 16A(4)(a) or (b). Section 9 provides a multi-step rule for item 72860, linking it to initial services in Group P5 (other than item 72860), Group P6 or Group P7 and requiring a treating practitioner determination, a laboratory-level finding that the subsequent P7 service cannot be performed at the original accredited laboratory, and rendering of the subsequent P7 service and the 72860 service in a different accredited laboratory by a recognised pathologist.

Finally, the instrument takes effect on a specified commencement date. The commencement table in section 2 records that the whole instrument commences, or is taken to have commenced, on 1 March 2026. Schedule 1 repeals the earlier Health Insurance (Pathologist-determinable Services) Determination 2015 in full.

Structurally, the instrument operates as a definitional and eligibility specification for the purposes of an existing statutory provision (s 4BA of the Act). It does not itself create offence provisions or set out rates or payments. It refers repeatedly to the pathology services table and to definitions and procedural requirements contained in the Act, including paragraph 16A(4)(a) or (b), and it adopts the Act’s interpretive approach, stating that references to provisions of the Act are to be read as in force from time to time (s 5(2)). The operational effect is that certain specified pathology items, when provided under the circumstances described, are to be classified as pathologist-determinable services within the meaning of s 4BA of the Act.

The Determination builds on a small set of recurring legal concepts drawn from the Health Insurance Act 1973 and the pathology services table. Those concepts drive who may decide and when an extra or alternative pathology service is treated as a pathologist-determinable service.

Pathologist-determinable service. The instrument defines when a pathology service is a "pathologist-determinable service" for the purposes of s 4BA. Section 6 gives the basic test: the item must be in the pathology services table and must be rendered by or on behalf of an approved pathology practitioner to a patient of that practitioner. The Determination therefore ties the concept to two features, the item identity in the pathology services table and the practitioner-patient relationship.

Approved pathology practitioner and recognised pathologist. The instrument relies on definitions that appear in the Act’s interpretation provisions. Section 5 notes that expressions such as "approved pathology practitioner", "pathology service", "pathology services table" and "accredited pathology laboratory" are defined in the Health Insurance Act 1973. The instrument supplements these by defining "recognised pathologist" as a medical practitioner recognised as a specialist in pathology for the purposes of the Act. That distinction matters because certain items in section 8 and section 9 require that an approved practitioner be a "recognised pathologist".

Requests complying with paragraph 16A(4)(a) or (b). Sections 7 and 8 repeatedly condition the availability of pathologist-determinable treatment on an earlier request having complied with paragraph 16A(4)(a) or (b) of the Act. The Determination does not restate what those paragraphs require, but it makes compliance with them a precondition. In practice this imports whatever documentary or authorisation rules those paragraphs set out into the Determination’s mechanics.

"Rendered by or on behalf of" and "to a patient of that practitioner". The instrument uses both phrases repeatedly. A service must be rendered "by or on behalf of" an approved pathology practitioner, and in the baseline rule in section 6 must be "to a patient of that practitioner." These phrases allocate decision-making authority to the approved pathology practitioner while allowing for actions taken by other persons acting under the practitioner’s authority. They also import a factual threshold about the relationship between patient and practitioner.

Item-to-item mappings and group-driven processes. Section 7 contains a table pairing target items (Column 1) with originally requested items (Column 2). That table is central to situations where a pathologist, having performed an initial service, may proceed to render a different listed service when the practitioner considers it necessary on the basis of information learned from the initial service. Section 9 takes the same idea further for item 72860, embedding it in a sequence of clinical and laboratory decisions that include the treating practitioner, an accredited pathology laboratory that rendered an initial service and a different accredited laboratory that performs the subsequent Group P7 service, with the 72860 service used to select tissue samples for referral.

The Determination affects a narrow and well-defined set of stakeholders who operate under the Health Insurance Act 1973 and who are parties to the production, requesting and administration of pathology services listed in the pathology services table. Those stakeholders include, at a minimum, the following.

Approved pathology practitioners. The core decision-maker under this Determination is the approved pathology practitioner. Sections 6 and 7 require the service to be rendered by or on behalf of an approved pathology practitioner. Section 8 imposes the extra requirement in some cases that the approved pathology practitioner be a recognised pathologist for particular items. Approved pathology practitioners will need to understand when they can treat an item as pathologist-determinable and under what factual bases (for example, the information learned from an earlier service) such a determination is permitted.

Recognised pathologists. For the items listed in section 8 and for certain requirements in section 9, a recognised pathologist is required. The instrument defines "recognised pathologist" at section 5 as a medical practitioner recognised as a specialist in pathology for the purposes of the Act. Individuals and laboratories must therefore be able to identify which practitioners meet that status under the Act in order to rely on the section 8 and section 9 pathways.

Treating practitioners. Sections 8 and 9 embed roles for the treating practitioner. Section 8 allows certain services to be determined necessary on the basis of information provided by a treating practitioner about specified initial items. Section 9 requires the treating practitioner to determine that a subsequent Group P7 service is clinically necessary before the laboratory-level steps to select tissue for referral may proceed. Treating practitioners will therefore need to be mindful that their communications and determinations are explicitly referenced as bases for downstream pathology decisions.

Accredited pathology laboratories. Sections 8 and 9 require accredited laboratories to be involved in laboratory-level determinations and in the handling of specimens and referrals. Section 9 in particular spells out a process in which the accredited laboratory that rendered the initial service must determine it is unable to perform the subsequent P7 service and must determine that an item 72860 service is required to select tissue for referral to a different accredited laboratory. Accredited laboratories must document those determinations to meet the conditions in the Determination.

Patients. The instrument conditions several pathways on services being rendered to "a patient of that practitioner" (s 6) or being "rendered to the patient by, or on behalf of, the approved pathology practitioner" (s 7, s 8). Patients therefore may be affected when an approved pathology practitioner, on the basis of an initial specimen or information provided by a treating practitioner, proceeds to provide additional services without a separate treating practitioner request.

The instrument does not create standalone criminal or civil offences, but it imposes definitional thresholds and procedural preconditions that create duties of fact and record to satisfy the statutory test in s 4BA. Those duties and the operational rights are concentrated in a small number of provisions.

Duties placed on approved pathology practitioners. Under section 6, an approved pathology practitioner must render, or have a service rendered on their behalf, to a patient of that practitioner in order for the service to qualify as a pathologist-determinable service. Section 7 requires an approved pathology practitioner who wishes to rely on the "different service originally requested" pathway to form the professional judgment that the additional service is necessary, and that judgment must be based on information learned from another service that was rendered to the patient under a request that complied with paragraph 16A(4)(a) or (b) of the Act. Section 9 adds a laboratory-level duty, requiring an approved pathology practitioner at the accredited laboratory that performed the initial service to determine that the laboratory is unable to perform the subsequent Group P7 service and that a 72860 service is required to select tissue for referral.

Duty to ensure requests complied with paragraph 16A(4)(a) or (b). Sections 7 and 8 make compliance with paragraph 16A(4)(a) or (b) a precondition for using the pathologist-determinable routes they create. Parties who control the original request (for example, treating practitioners and those submitting requests on their behalf) therefore have an obligation to ensure that requests meet the Act’s relevant paragraph requirements so that later pathologist determinations can be validly made under this Determination.

Duty to be a recognised pathologist for specified items. Section 8 requires that services described in certain items (69316, 69317, 69319, 69494, 69495, 69496, 69497 and 69498) be rendered by or on behalf of an approved pathology practitioner who is a recognised pathologist. Section 9 similarly requires recognised pathologists for the subsequent P7 service and the 72860 service where the specified chain of events occurs. The duty is therefore to ensure that, for these items, an appropriately recognised practitioner is the authorising clinician.

Laboratory duties. Accredited pathology laboratories are the locus of several duties. Section 9 requires the laboratory that performed the initial service to determine it cannot perform the subsequent P7 service and to determine an item 72860 service is required for sample selection for referral. The laboratory that receives the referral must render the subsequent P7 service and the 72860 service by or on behalf of a recognised pathologist. These are duties of process and documentation at the laboratory level.

The Determination is silent on express penalties, fines or enforcement processes. It is a specification instrument made under section 4BA of the Health Insurance Act 1973 (section 3), and it operates by defining when an item is a pathologist-determinable service for the purposes of the Act. The instrument does not itself create offence provisions, nor does it set out a separate enforcement regime.

Consequently, enforcement and penalties, where relevant, are those available under the Health Insurance Act 1973 and any subordinate or connected regulatory instruments referenced by the Act. Practically, this means two points are important for implementers.

First, compliance with the procedural preconditions in the Determination matters because the instrument determines the classification of a service "for the purposes of section 4BA of the Act." The Act may attach consequences, administrative remedies, or other liabilities to classifications and to compliance with statutory requests and documentation rules. The Determination’s repeated cross-reference to paragraph 16A(4)(a) or (b) of the Act imports the Act’s administrative or documentary requirements into the Determination. Failure to satisfy those requirements will therefore be a matter for the Act’s enforcement provisions.

Second, the Determination delegates factual determination to practitioners and laboratories. Where a practitioner purports to rely on the Determination’s pathways but cannot show the required factual bases (for example, that the original request complied with paragraph 16A(4)(a) or (b), or that an accredited laboratory determined it could not perform a subsequent service), a reviewer acting under the Act will examine the documentary and factual record. Although the Determination does not set penalties, the absence of compliant documentation may lead to consequence under the Act, such as denial of a claim, administrative recovery, or other statutory remedies the Act permits.

Implementers should therefore assume that the Determination’s operational impact is enforced through the Act. The Determination creates a set of qualifying conditions; proving those conditions is a compliance responsibility. The Determination’s silence on enforcement mechanisms should not be read as a relaxation of compliance obligations because the Act remains the primary legal instrument for penalties and enforcement. Section 5(2) also means that any future amendments to the Act may alter enforcement or documentary requirements that the Determination references.

Finally, the repeal of the earlier 2015 Determination in Schedule 1 may shift prior compliance regimes, and any transition arrangements relevant to enforcement will follow from the Act and from administrative guidance issued by the agency responsible for administering the Act. The Determination itself does not set transitional enforcement rules beyond effecting the repeal on commencement.

The Determination is explicitly framed as an instrument made under section 4BA of the Health Insurance Act 1973 (s 3). Therefore its operation is integrally tied to the Act and to other subordinate instruments that define item lists and co-dependent service rules.

Direct interaction with the Health Insurance Act 1973. Section 5 notes that many expressions used in the instrument are defined in the Act’s interpretation section, including "approved pathology practitioner", "pathology service", "pathology services table" and "accredited pathology laboratory". The Determination does not restate those definitions but depends on them. Section 5(2) further instructs that references to provisions of the Act are to be read as in force from time to time. That means any amendment to the Act, to the definitions or to paragraph 16A(4)(a) or (b), will affect how the Determination operates without the Determination itself being amended. Where the Determination refers to paragraph 16A(4)(a) or (b) as a condition of an original request, it imports the Act’s documentary or authorisation requirements for requests directly into the Determination’s conditions.

Interaction with the pathology services table and item lists. The Determination is item-driven. Sections 6 and 7 require the service to be "described in an item in the pathology services table" and sections 7, 8 and 9 specify particular item numbers and groupings. The pathology services table is a separate schedule under the Act’s regulatory framework. Any amendment to the pathology services table, such as additions, removals or renumbering, will therefore have immediate effect on which services the Determination covers.

Cross-reference to the Health Insurance (Section 3C Co-Dependent Pathology Services) Determination 2018. Section 7 includes a note that certain items mentioned in its list are specified in the 2018 Determination. Section 9 explicitly references the Health Insurance (Section 3C Co-Dependent Pathology Services) Determination 2018 in relation to item 72860. This demonstrates a layered regulatory architecture where multiple subordinate determinations interact: the 2018 Determination governs co-dependent pathology services and the 2025 Determination interacts with that regime for specific items.

Repeal of the 2015 Determination. Schedule 1 repeals the Health Insurance (Pathologist-determinable Services) Determination 2015 in full. That repeal replaces the prior instrument with this 2025 Determination. Implementation will therefore require stakeholders to reconcile any procedural differences and to satisfy the Act in its current form, as read with the new Determination.

The text supplied contains a limited amendment history within the instrument itself. Two items are relevant.

Commencement and temporal effect. Section 2 contains the commencement table that records the whole instrument commences, or is taken to have commenced, on 1 March 2026. Section 2(2) also clarifies that information in Column 3 of the table is not part of the instrument and may be edited in published versions; this is a formal drafting note about published metadata. The concrete effect for operational planning is that stakeholders must be prepared to comply with the Determination from 1 March 2026.

Repeal of the 2015 Determination. Schedule 1,Repeals contains a single item: it repeals the Health Insurance (Pathologist-determinable Services) Determination 2015 in full. That repeal takes effect on the Determination’s commencement date. The 2015 instrument therefore ceases to have effect from 1 March 2026, and the 2025 Determination is the operative specification for pathologist-determinable services under s 4BA.

No further amendments recorded in the instrument. The Determination does not itself contain any other amendment or saving provisions, transitional clauses or modification of other instruments beyond the Schedule 1 repeal. Section 4, titled "Schedules," provides a general statement that each instrument specified in a Schedule is amended or repealed as set out in the Schedule concerned, and that any other item in a Schedule has effect according to its terms. In this instrument, the only scheduled entry is the repeal listed in Schedule 1.

Dynamic reference to future changes. Section 5(2) states that references to provisions of the Act are to be read as in force from time to time. That language creates an implicit mechanism by which future amendments to the Health Insurance Act 1973 will feed through to the operation of the Determination. It is not an amendment history item, but it functions as a forward-looking incorporation device that means the Determination does not require amendment each time the Act’s relevant provisions change.

No other historical changes or version notes. The instrument contains no express amending history of its own, for example no earlier versions or earlier commencement dates. The only historical action recorded is the repeal of the 2015 Determination.

Practical note for implementers. Because the Determination replaces the 2015 instrument and because it incorporates Act provisions as in force from time to time, organisations must not only update their processes to reflect the new item lists and conditions in the 2025 Determination but also ensure ongoing monitoring of the Health Insurance Act 1973 and of the pathology services table for future changes that will affect the Determination’s operation.

The instrument itself does not cite any judicial decisions, tribunal determinations or administrative rulings. There are no cases, appeals or litigation outcomes recorded or referenced in the Determination. The text is a specification instrument setting out conditions for when a pathology service is to be treated as a pathologist-determinable service under section 4BA of the Health Insurance Act 1973; it does not record litigation history nor does it list precedents.

Implications of an absence of litigation history in the instrument. Because the Determination contains no litigation references, stakeholders cannot point to any judicial interpretation of its provisions within the instrument. Where disputes arise about application of phrases used in the Determination, such as:

• "rendered, by or on behalf of, an approved pathology practitioner";
• "a patient of that practitioner";
• "considers the service to be necessary, on the basis of information learned from another service"; or
• the laboratory-level determinations required by section 9,

those interpretative questions will be resolved under the Health Insurance Act 1973 framework and through administrative practice, guidance and, if necessary, subsequent litigation or tribunal review. The Determination therefore represents a set of statutory criteria that remain untested by judicial exposition at the time the instrument was made.

How to treat future litigation. If a dispute arises in practice about whether an item was legitimately treated as a pathologist-determinable service under the Determination, the matter will be adjudicated against the express wording of the Determination, the relevant provisions of the Health Insurance Act 1973 (including paragraph 16A(4)(a) or (b)), and any relevant factual and documentary record. Parties should therefore document decisions, request compliance, and clinical rationales comprehensively, because the statutory text imposes predicate facts and does not itself create a body of interpretative examples.

Monitoring for case law. Practitioners, laboratories and administrators should monitor decisions under the Health Insurance Act 1973 once the Determination commences. Early administrative or judicial interpretations may clarify contested phrases or operational thresholds, as well as the evidentiary sufficiency of the kinds of records the Determination implicitly requires.

In short, there is no litigation history recorded in the instrument. Any interpretative or enforcement questions will be resolved under the Health Insurance Act 1973 and through subsequent administrative or judicial action outside the text of this Determination.

This Determination contains several technical and operational traps that may generate compliance risk if overlooked. The items below distil the concrete, source-grounded points of friction.

Reliance on paragraph 16A(4)(a) or (b) without restating it. Sections 7 and 8 make the availability of a pathologist-determinable route conditional on the original request having complied with paragraph 16A(4)(a) or (b) of the Act. The instrument does not restate what those paragraphs require. Organisations must therefore check the Act to confirm the documentary or authorisation standards imposed by those subparagraphs. Failure to ensure original requests meet those requirements will nullify the chain that the Determination permits.

"Rendered by or on behalf of" creates delegation and agency questions. The Determination repeatedly uses "rendered, by or on behalf of, an approved pathology practitioner." This allows actions taken by others under a practitioner’s authority to qualify. But implementers must be explicit about what evidence establishes that an action was carried out "on behalf of" the practitioner. Absent clear internal protocols and delegation records, a claim that a service was rendered "on behalf of" a practitioner may be challenged.

The patient-of-practitioner requirement. Section 6 requires the service to be rendered to "a patient of that practitioner." Operationally, this raises questions about patient lists, referral relationships and specimen collection sites. A sample collected at a community collection centre but processed by a pathology practitioner must still meet the "patient of that practitioner" threshold. Organisations should document the practitioner-patient linkage in line with the Act’s definitions.

Item mapping complexity in section 7. Section 7 contains a table that maps particular items (Column 1) to originally requested items (Column 2). The table is extensive and includes many item numbers. Administrative systems must be updated to recognise those mappings precisely. Errors in mapping could result in incorrect application of the Determination. The note that some items in the table are specified in the 2018 Co-Dependent Determination adds another layer of cross-referencing.

Recognised pathologist requirement is item-specific. Section 8 makes certain items conditional on the approved pathology practitioner being a "recognised pathologist." Section 5 defines that phrase. Practitioners and employers must maintain evidence of recognised specialist status for the individuals who sign or authorise those services. Failure to ensure recognised status will defeat the pathologist-determinable classification for the affected items.

Compliance with this Determination requires operational, clinical and administrative steps to ensure the factual predicates and documentary evidence supporting a pathologist-determinable classification are in place. The following checklist is directly grounded in the instrument’s text.

1. Update item mapping and system logic.

• Identify all pathology services table items listed in sections 6, 7, 8 and 9. In particular, capture the item lists in section 7’s table (Column 1 items paired with Column 2 originally requested items), the section 8 items (69316, 69317, 69319, 69494, 69495, 69496, 69497, 69498) and section 9 references to Group P5 (other than item 72860), Group P6, Group P7 and item 72860.
• Amend electronic health record, order entry and claims systems to recognise the Determination’s mappings so that when a pathologist acts under the Determination the relevant item is flagged correctly.

2. Ensure competence and status of practitioners.

• Maintain an up-to-date register of approved pathology practitioners who work in the organisation, and for items in section 8 and the situations described in section 9, maintain evidence that the practitioner is a "recognised pathologist" as defined for the purposes of the Health Insurance Act 1973.
• Ensure delegation protocols are documented so that services "rendered on behalf of" an approved pathology practitioner have a clear chain of authority and documentation.

3. Capture and retain original request compliance with paragraph 16A(4)(a) or (b).

• Obtain and keep copies of the original request forms or electronic equivalents showing compliance with paragraph 16A(4)(a) or (b) of the Act for all initial services that may trigger a pathologist-determinable follow-on under sections 7 or 8.
• Train treating practitioners and request submitters on the documentary content required under those paragraphs, so later pathologist determinations are supported.

4. Document the clinical basis for additional services.

• When a practitioner relies on section 7 or section 8 to perform a different service from that originally requested, record the clinical reasoning: identify the initial service rendered, specify the "information learned from another service" that makes the additional service necessary, and record the practitioner's considered judgment that the additional service is necessary.