PMB Motivation Letters: A Practical Guide for SA Doctors

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

A well-built PMB motivation letter turns a scheme rejection into a funding obligation, because prescribed minimum benefits are a legal entitlement, not a discretionary benefit. This guide gives South African doctors the regulatory basis to cite, the clinical evidence adjudicators expect, and the escalation route 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 a comprehensive option.

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

This is why a motivation letter carries real weight. You are not asking the scheme for a favour — you are demonstrating 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 basis to cite in the letter

Anchor the motivation in the instruments the adjudicator is bound by, not in general appeals to fairness. The core citations 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. Quote the regulation, then show how your patient meets it on the clinical facts.

What to include: the anatomy of a strong motivation

A strong motivation establishes three things in order: (a) the patient has a PMB entitlement, (b) the requested care is clinically appropriate for this patient, and (c) where relevant, the scheme’s formulary or DSP alternative is unsuitable. Adjudicators work through claims quickly — structure the letter so each element is findable at a glance.

Patient identifiers: full name, scheme name, membership number, dependant code, and any authorisation or claim reference the scheme has issued.
The diagnosis with its ICD-10 code(s), stated exactly as coded on the account, and the PMB category it falls under (DTP, CDL condition or emergency medical condition).
Clinical evidence of the diagnosis: relevant history, examination findings, and the special investigations that confirm it — attach or reference results rather than asserting them.
Prior therapy: what has been tried, at what dose and duration, and the documented outcome — treatment failure, intolerance or adverse reaction. This is decisive in formulary disputes.
Why the requested treatment is clinically appropriate: link it to recognised guidelines or the registered indication, and state the expected outcome and the risk of withholding it.
Where a non-DSP or non-formulary option is requested: the specific grounds that make the scheme’s alternative unsuitable — inaccessibility, ineffectiveness, contraindication or documented adverse reaction.
Your details: qualifications, HPCSA registration and practice number, signature and date. An unsigned or unattributed motivation is easy to ignore.

Getting the ICD-10 coding right

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, and no motivation will rescue a claim the scheme cannot match to a PMB condition.

Use the most specific code the clinical record supports, keep the code on the account, the authorisation request and the motivation letter identical, and code co-morbidities that affect the treatment plan. CMS publishes the PMB condition lists with their associated ICD-10 codes on medicalschemes.co.za — check the current version rather than relying on memory, as the lists are revised.

Countering DSP and formulary rejections

DSP and formulary rejections fail when the member’s use of the alternative was not voluntary. Regulation 8 permits a co-payment only for voluntary non-DSP use — so the motivation must show involuntariness on the facts: the DSP has no capacity or unacceptable waiting times, is not within reasonable reach of the patient, does not offer the required service, or the care began as an emergency where no DSP election was possible.

For formulary medicines, build the letter around the substitution requirement in the managed health care regulations: document that the formulary option was used and failed, caused an adverse reaction, or is contraindicated for this specific patient — with dates, doses and clinical records. A bare statement of preference will be declined; a documented trial of the formulary agent with a recorded outcome is very difficult for a scheme to refuse.

Ask the scheme to identify the exact rule, protocol or formulary entry it relies on, in writing. Schemes must be able to justify a PMB decision against the Act and Regulations, and a written basis either gives you the target for your rebuttal or exposes that there is none.

Escalating to the Council for Medical Schemes

If the scheme rejects a properly motivated PMB claim, first exhaust its internal dispute process — request a formal review of the decision in writing and keep the outcome letter. CMS expects internal remedies to be used before it investigates, and the paper trail strengthens the eventual complaint.

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. Attach the motivation letter, the ICD-10-coded accounts, the rejection correspondence and the supporting clinical records — complaints succeed on the same evidence a good motivation is built on.

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 this regulatory framework built in — the Act, Regulation 8 and the formulary substitution provisions cited where they apply, structured around your clinical findings and ICD-10 codes. Every motivation is produced as a draft for you to review, amend and sign; 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 establishes the diagnosis with ICD-10 codes, the PMB category (DTP, CDL or emergency), why the requested care is clinically appropriate, and — where relevant — why the scheme’s formulary or designated service provider alternative is unsuitable for the patient.

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?

Include the patient and scheme identifiers, the diagnosis with the exact ICD-10 codes used on the account, the PMB category it falls under, the clinical evidence confirming the diagnosis, and a documented history of prior therapy with outcomes. Then state why the requested treatment is clinically appropriate and, where you are motivating past a formulary or DSP, the specific facts that make the scheme’s alternative unsuitable. Sign it with your qualifications, HPCSA registration and practice number.

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

Use the substitution requirement in the managed health care regulations (Regulations 15H and 15I): 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. Document the trial of the formulary agent — dose, duration and recorded outcome — or the contraindication that prevents its use, and attach the supporting clinical records. A documented formulary failure is far stronger than a statement of prescriber preference.

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, so the code on the account, the authorisation and the motivation letter must match.

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

First exhaust the scheme’s internal dispute process by requesting a formal written review of the decision. If the rejection stands and still conflicts with the patient’s PMB entitlement, lodge a written complaint with the Council for Medical Schemes under the Medical Schemes Act, attaching the motivation, coded accounts, rejection correspondence and clinical records. CMS refers the complaint to the scheme for a response and 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.