PMB Motivation Letters: A Practical Guide for SA Doctors

Updated 2026-07-05 · Written for South African healthcare practitioners by Sphygmos.

A PMB motivation letter turns a scheme rejection into a funding obligation, because prescribed minimum benefits are a legal entitlement under the Medical Schemes Act 131 of 1998, not a discretionary benefit. This guide sets out the regulatory framework for South African doctors: what schemes must pay for, when a motivation is needed, the ICD-10 coding the law requires, and the escalation route through the Council for Medical Schemes when a scheme still refuses. It covers diagnosis and treatment pair, chronic disease list and emergency PMB claims, including designated service provider and formulary disputes.

What prescribed minimum benefits oblige a scheme to pay

Prescribed minimum benefits (PMBs) are defined under the Medical Schemes Act 131 of 1998 and its Regulations. Every registered medical scheme must fund the diagnosis, treatment and ongoing care of PMB conditions in full, regardless of the benefit option the member has chosen. A hospital plan carries exactly the same PMB obligations as the richest option the scheme sells.

PMB conditions fall into three groups: the Diagnosis and Treatment Pairs (DTPs) listed in Annexure A of the Regulations, the Chronic Disease List (CDL) conditions, and emergency medical conditions. The Council for Medical Schemes (CMS) is the statutory regulator. It publishes the PMB condition lists and adjudicates the PMB funding disputes escalated to it.

This is why a motivation letter carries real weight. The doctor is not asking the scheme for a favour. The letter demonstrates that a statutory funding obligation applies to this patient, this diagnosis and this treatment.

When a PMB motivation letter is needed

Schemes adjudicate PMB claims against their rules, managed-care protocols, designated service provider (DSP) arrangements and formularies. A motivation is needed whenever the adjudication outcome conflicts with the patient's PMB entitlement. The common triggers are:

Pre-authorisation for treatment of a PMB condition is declined or only partially approved.
A claim for PMB care is paid from the member's medical savings account or day-to-day benefits instead of the scheme's risk pool.
The scheme imposes a co-payment or levy on PMB treatment the patient did not voluntarily elect.
A prescribed medicine is rejected because it is not on the scheme's formulary, even though the formulary option is clinically unsuitable for this patient.
The scheme insists on its DSP when the DSP is not reasonably accessible to the patient, or care began as an emergency.
The scheme disputes that the condition qualifies as a PMB at all, or disputes the level of care required.

The legal framework: Regulation 8 and formulary substitution

The core instruments are the Medical Schemes Act 131 of 1998 read with its Regulations, and in particular Regulation 8, which obliges the scheme to pay for the diagnosis, treatment and care of a PMB condition in full.

Regulation 8 also sets the limits of scheme cost-control tools. A scheme may designate DSPs and apply formularies, but a co-payment is only permissible where the member voluntarily uses a non-DSP. Where the DSP is not reasonably accessible, where the service was an involuntary or emergency admission, or where the formulary option is clinically inappropriate for the patient, the scheme must still pay in full.

For medicine disputes, the managed health care regulations (Regulations 15H and 15I) require that formulary arrangements provide for appropriate substitution, without penalty to the beneficiary, where a formulary drug has been ineffective or causes, or would cause, an adverse reaction. Whether a patient meets that test is decided on the clinical record.

ICD-10 coding requirements on PMB claims

PMB entitlement is identified at adjudication level by the ICD-10 code on the account. Legislation requires treating providers to include ICD-10 codes on patient accounts, and CMS guidance is that a valid PMB ICD-10 code must trigger assessment against the PMB benefit.

If the account carries a vague or incorrect code, the claim can be paid from the wrong benefit, typically savings or day-to-day limits, or rejected outright. No motivation rescues a claim the scheme cannot match to a PMB condition. CMS publishes the PMB condition lists with their associated ICD-10 codes on medicalschemes.co.za. The lists are revised, so the current version is the one that counts.

What a weak motivation costs

A motivation that fails to establish the PMB entitlement is treated as an ordinary benefit request. The consequences follow quickly: the claim is declined or paid from the member's savings account, a co-payment lands on the patient, and the practice carries an unpaid or short-paid account while the dispute runs.

The costs compound at escalation. A CMS complaint is adjudicated on the paper record, so defects in the original motivation follow the claim through the internal review and the complaint. An ICD-10 code that does not match the account, an undocumented formulary failure or an unsigned letter can sink an otherwise valid claim months later, and the hours spent re-motivating and corresponding with the scheme are unbillable practice time.

Sphygmos drafts the motivation with this regulatory framework built in, ready for the doctor to review and sign.

Escalating to the Council for Medical Schemes

If the scheme rejects a properly motivated PMB claim, the scheme's internal dispute process comes first. CMS expects internal remedies to be exhausted before it investigates, so the decision must be taken on formal written review with the scheme, and the outcome letter forms part of the record.

If the internal outcome still conflicts with the patient's PMB entitlement, the member, or the practitioner assisting them, can lodge a written complaint with the Council for Medical Schemes under the Medical Schemes Act. CMS refers the complaint to the scheme for a written response and then adjudicates against the Act and Regulations. The complaint is decided on the documents: the motivation letter, the ICD-10-coded accounts, the rejection correspondence and the supporting clinical records.

A party aggrieved by the outcome can take the matter further through the appeal mechanisms in the Act, including appeal to the Council's Appeal Committee. Details and current forms are on the CMS complaints procedure page at medicalschemes.co.za.

How Sphygmos helps

Sphygmos drafts PMB motivation letters with the current regulatory framework built in: the Medical Schemes Act, Regulation 8 and the formulary substitution provisions, applied where the case calls for them and structured around your clinical findings and ICD-10 codes. Every motivation is produced as a draft, ready for your review, amendment and signature. Nothing is ever sent on your behalf.

See Sphygmos, the clinical operating system for South African doctors

Frequently asked questions

What is a PMB motivation letter?

A PMB motivation letter is a clinical letter from the treating doctor demonstrating that a patient's condition and treatment qualify as a prescribed minimum benefit under the Medical Schemes Act 131 of 1998, and that the scheme is therefore obliged to fund it in full. It identifies the diagnosis with its ICD-10 codes and the PMB category it falls under: a diagnosis and treatment pair, a Chronic Disease List condition or an emergency medical condition.

When does a medical scheme have to pay for a PMB in full?

A medical scheme must fund the diagnosis, treatment and ongoing care of a PMB condition in full, regardless of the member's chosen benefit option, including hospital plans. This obligation comes from the Medical Schemes Act 131 of 1998 and Regulation 8. The scheme may channel care through designated service providers and formularies, but where those arrangements are inaccessible or clinically inappropriate for the patient, the obligation to pay in full remains.

Can a medical scheme charge a co-payment on a PMB?

Only in limited circumstances. Under Regulation 8, a co-payment on PMB care is permissible only where the member voluntarily chooses a non-designated service provider. If the DSP is not reasonably accessible, the admission was an emergency, or the formulary option is clinically inappropriate, the scheme must pay in full and may not pass a co-payment or levy to the patient.

What should I include in a PMB motivation letter?

A motivation must give the scheme what it needs to match the claim to a PMB condition and adjudicate it against the Act and Regulations: the patient and scheme membership details, the diagnosis with the ICD-10 codes used on the account, and the treating practitioner's signature with HPCSA registration details. Where the request departs from a formulary or DSP, the Regulations set the tests the scheme applies to that departure.

How do I motivate for a non-formulary drug for a PMB condition?

The managed health care regulations (Regulations 15H and 15I) set the test: where a formulary drug has been ineffective or causes, or would cause, an adverse reaction, the scheme must provide for appropriate substitution without penalty to the beneficiary. The scheme decides that question on the clinical record, so the outcome turns on what the record shows about the formulary agent and this patient. A bare statement of prescriber preference does not meet the regulation's test.

Do PMB claims need an ICD-10 code?

Yes. Legislation requires treating providers to include ICD-10 codes on patient accounts, and schemes identify PMB entitlement from those codes. CMS guidance is that a valid PMB ICD-10 code must trigger assessment against the PMB benefit. An incorrect or non-specific code can route the claim to savings or day-to-day benefits, or lead to outright rejection.

What do I do if the scheme rejects my PMB motivation?

The scheme's internal dispute process comes first: a formal written review of the decision. If the rejection stands and still conflicts with the patient's PMB entitlement, a written complaint can be lodged with the Council for Medical Schemes under the Medical Schemes Act, supported by the motivation, the coded accounts, the rejection correspondence and the clinical records. CMS refers the complaint to the scheme for a response, adjudicates against the Act and Regulations, and its decisions can be taken on appeal through the mechanisms in the Act.

Sources

This guide is general information for healthcare practitioners, not medical, legal, or billing advice. Verify current scheme rules and Regulations before relying on any detail.