A patient suffering from wrist algodystrophy for over a year submits a file to the CPAM to obtain coverage for long-term illness. Two months later, he applies to the MDPH for a disability rate. The responses from the two organizations are unrelated, and the rates assigned are too. This disparity is not an administrative bug: it reflects distinct evaluation grids, purposes, and scales that coexist without coordination.
CPAM, MDPH, AT/MP scheme: three circuits for the same pain
Algodystrophy, or complex regional pain syndrome, is not among the 30 long-term conditions listed on the official list. To obtain coverage under the ALD, one must go through the off-list ALD system, which requires an evolution of at least six months with prolonged or costly care. The attending physician writes a care protocol, the CPAM examines it, and the response largely depends on the strength of the medical file.
When a file is being prepared in parallel with the MDPH, the logic changes. The commission evaluates functional limitations in daily life, not work capacity. A rate below 50% can still grant access to a RQTH, but it closes the door to certain aids like the AAH. By understanding the disability rate for recognized long-term algodystrophy, one better understands why the same patient can be assigned very different rates depending on the organization contacted.
The AT/MP scheme (work accident or occupational disease) applies yet another scale. The IPP rate (permanent partial disability) is set after a medical assessment based on Article R. 434-32 of the Social Security Code. This rate conditions the payment of a pension or capital, depending on whether it exceeds a certain threshold.
Off-list ALD and daily allowances: what algodystrophy concretely allows
Recognition as off-list ALD does not provide a disability rate. It opens a right: the maintenance of daily allowances can last up to three years, compared to six months in the standard scheme. For a pathology with uncertain evolution and unpredictable flare-ups, this extended duration changes the financial situation.
At the end of this period, if returning to work remains impossible, the CPAM may propose a transition to disability. The condition: a reduction of at least two-thirds of work or earning capacity. The medical advisor gives an opinion, and the assigned category (1, 2, or 3) determines the amount of the pension.
Feedback varies on this point, but several insured individuals report that the transition from ALD to disability does not happen automatically. It often requires follow-ups, providing additional documents, and sometimes contesting a refusal before the amicable appeal commission.
The trap of an incomplete medical file
A single examination almost never suffices to characterize algodystrophy for an expert. The Budapest criteria, which remain the diagnostic reference for CRPS, require cross-referencing various clinical signs: disproportionate pain, vasomotor disturbances, stiffness, skin changes. A longitudinal medical file weighs more than a single expert report.
In practical terms, this means it’s beneficial to gather:
- Reports of successive consultations showing the evolution of symptoms over several months
- Imaging results (bone scintigraphy, MRI) dated and commented on by the radiologist
- Prescriptions for analgesic treatments, physiotherapy, or sympathetic blocks, which attest to chronicity
- Medical certificates describing functional limitations in daily tasks and at work
Without this accumulation of dated evidence, the appointed expert may conclude an improvement or a stabilized state with few sequelae, which pulls the rate down.
MDPH disability rate and RQTH: two concepts not to confuse
The RQTH and the disability rate are two distinct decisions, even if they come from the same commission. One can obtain a RQTH with a rate below 50%, which facilitates access to workplace adjustments or supported employment schemes. In contrast, access to the AAH or the mobility inclusion card requires a higher rate.
For algodystrophy, the MDPH rate depends on the objectively assessed functional impacts. An impairment of the dominant upper limb that prevents fine grasping will be rated differently than a foot impairment in a sedentary employee. The professional context and daily tasks weigh as much as the diagnosis itself.
Contesting an undervalued rate
If the assigned rate seems too low, an appeal is possible before the disability litigation tribunal (now the social division of the judicial tribunal). Judicial medical expertise can reassess the sequelae, especially if new medical elements have been produced in the meantime.
It is important to keep in mind that appeal deadlines are regulated. Generally, one has two months after notification to contest. After this period, the decision becomes final, unless one can demonstrate a subsequent aggravation.
Algodystrophy and medical expertise: preparing the appointment that determines everything
The medical expertise remains the decisive moment, whether for the CPAM, the MDPH, or the AT/MP scheme. The expert physician often has less than an hour to evaluate a pathology whose manifestations fluctuate from day to day.
Some concrete reflexes change the quality of the file:
- Bring a chronological binder with all medical documents, not a pile of loose sheets
- Write a personal one-page summary describing the tasks that have become impossible or painful in daily life
- Request a detailed medical certificate from the attending physician specifically written for the expertise, not a standard prescription
The expert evaluates what is shown to them, not what is forgotten to mention. A pain not described in the file is a pain that does not exist for the administration.
The recognition of algodystrophy as a long-term illness, in disability, or through an MDPH disability rate relies on distinct files, scales that do not communicate, and experts who do not apply the same grids. Preparing each file separately, with the appropriate documents for each organization, remains the only way to obtain an evaluation that reflects the reality of the sequelae.
