Evaluation guide
The Minnesota CMDE evaluation, explained
A detailed guide to the CMDE, diagnostic assessment, qualified evaluators, required evidence, DHS-7108, medical necessity and the next lawful step after a decision.
This guide does not replace DHS policy, payer requirements, legal advice or professional judgment. Never change, omit or invent diagnoses, symptoms, service times, signatures, evaluations or household information to obtain eligibility or payment. Report corrections through the responsible provider, health plan, county, Tribal Nation or DHS.
Know which evaluation you are getting
A comprehensive multi-disciplinary evaluation determines EIDBI eligibility and medical necessity. A screening only identifies possible concern. A diagnostic assessment establishes a clinical diagnosis. A CMDE may also qualify as the diagnostic assessment only when the qualified evaluator completes every required component; families should not assume the labels mean the same thing.
- Ask the provider to name the evaluation and its purpose in writing.
- Confirm whether it will establish or confirm a diagnosis, determine EIDBI medical necessity, or both.
- Coverage and service authorization remain separate decisions.
Verify the evaluator
DHS says a CMDE provider must be an eligible licensed physician, advanced practice registered nurse, mental health professional, or qualifying supervised clinical trainee; have at least 2,000 hours of relevant autism evaluation and treatment experience or equivalent graduate coursework; act within their scope; and enroll with MHCP as a CMDE provider.
- Search the provider’s MHCP enrollment and applicable professional license.
- Ask who signs the evaluation and who provides required supervision.
- Do not use an unqualified evaluator or borrowed credential to speed approval.
- A directory listing alone does not prove current availability or every credential.
How to prepare
Collecting information before the appointment can help the evaluator understand the whole child and reduce follow-up delays.
- Bring diagnostic, medical, therapy and school evaluation records.
- List medications, health conditions, communication methods and safety concerns.
- Write down family priorities, strengths and difficult daily routines.
- Bring interpreter or accessibility requests to the provider early.
What a sound evaluation uses
The evaluator reviews records, interviews the person and family, observes functioning, considers culture and language, and uses tools appropriate to the question. DHS strongly encourages standardized autism, cognitive, adaptive and sensory-regulatory assessment, but does not require one named autism tool. Autism-specific testing is required for an initial diagnosis or when the CMDE is also the diagnostic assessment.
- Describe ordinary good and difficult days rather than trying to produce a particular score.
- Disclose prior evaluations and relevant services; conflicting evidence should be considered, not hidden.
- Ask how recommended intensity and setting follow from documented functional needs.
- Ask what evidence is missing before signing that you reviewed the plan.
Read DHS-7108 and the full report
The CMDE provider completes DHS-7108 to document the medical-necessity determination. The supporting evaluation should explain diagnosis or related condition, strengths, functional needs, recommendations and the evidence used. A family signature acknowledges the documented review or consent described by the form; it should never be obtained on a blank or inaccurate document.
- Request completed copies for your records.
- Correct factual errors in writing; do not rewrite clinical findings to manufacture eligibility.
- Ask for the reasons behind recommended hours, setting and goals.
- Use authorized releases before records are shared across providers or schools.
What happens after the decision
If all eligibility and medical-necessity criteria are met, a qualified provider uses the CMDE to build an individual treatment plan and obtains required authorization. If the person does not qualify, ask for the written basis and the applicable review or appeal information; changing facts or shopping for a predetermined result is not an appropriate substitute.
- Choose an enrolled agency that fits the documented recommendation.
- Confirm active coverage, authorization, setting and provider availability.
- Track reevaluation dates and request an earlier clinical review when needs materially change.
- Coordinate other Medicaid and school services to prevent prohibited duplication.
Common questions
Frequently asked questions
Is a CMDE the same as a school evaluation?
No. A CMDE is used for the health care EIDBI benefit. A school evaluation determines eligibility and needs for special education. Information may be shared between teams with proper permission.
How often is a CMDE updated?
DHS family guidance describes an update every three years, with an earlier update when requested or clinically indicated. The treating team should also follow any current policy, authorization and diagnostic-assessment timing requirements that apply to the person.
Does the CMDE decide the exact provider?
No. It makes clinical recommendations. The family selects an enrolled provider and confirms coverage, authorization and availability.
What should I do if I disagree with the results?
Ask for the evidence and written reasons, request correction of factual errors, and contact the health plan, county, Tribal Nation or DHS for the applicable reconsideration, grievance, appeal or fair-hearing process. Do not alter records, conceal prior evaluations or ask a provider to document symptoms that were not observed or reported.
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