Quick Explanation
This denial indicates that the payer has declined reimbursement because there is no documented evidence that peer support services were actually utilized by the patient or integrated into their active behavioral health treatment plan. Payers issue this code when the medical record fails to demonstrate direct engagement between the certified peer specialist and the member, or when the service is missing from the established plan of care.
Common Causes for MH35
Denials with code MH35 typically happen for the following specific reasons:
- Lack of documentation in the medical record confirming the patient's active participation or face-to-face engagement during the billed peer support session.
- Failure to include peer support services as an approved and medically necessary modality in the patient's formalized, signed Individualized Treatment Plan (ITP).
- Billed service units (such as HCPCS code H0038) do not align with the actual time documented in the peer specialist's progress notes.
- The session was documented as a missed appointment or 'no-show' by the provider but was mistakenly submitted as a rendered service on the claim.
How to Prevent MH35 Denials
To avoid receiving this denial in the future, implement these specific checks:
- Ensure that peer support services are explicitly outlined, justified, and updated within the patient's treatment plan before billing.
- Require certified peer specialists to complete timely, detailed progress notes that clearly specify the intervention, duration, and patient response for every session.
- Implement a routine pre-billing reconciliation audit to verify that every billed peer support claim is backed by a completed and signed clinical note.
- Establish clear clinical workflows to distinguish between completed peer support encounters and cancelled or missed appointments to avoid accidental billing.
Appeal Letter Template for MH35
If you believe this claim was denied incorrectly, you can use the following template to submit an appeal.
[Your Practice Header]
[Date]
[Payer Name]
[Appeals Department Address]
RE: Appeal for Claim [Claim Number]
Patient: [Patient Name]
ID: [Patient ID]
Date of Service: [Date]
Denial Code: MH35 - Peer support services not utilized
Dear Appeals Department,
I am writing to appeal the denial of the above-referenced claim, which was denied with code MH35: "Peer support services not utilized".
We are appealing the denial of the peer support services billed on claim [Claim Number], which was incorrectly processed under denial code MH35. Pursuant to CMS guidelines for recovery-oriented behavioral health services under Section 1905(a)(13) of the Social Security Act and local Medicaid billing manuals, peer support services are fully reimbursable when rendered by a certified peer specialist and integrated into the patient's plan of care. The enclosed medical records, including the signed Individualized Treatment Plan and contemporaneous clinical progress notes, demonstrate that the patient actively participated in the session on [Date of Service]. The documentation clearly details the specific recovery goals addressed, the active engagement of the patient, and the total face-to-face time spent, thereby validating that the service was fully utilized and clinically necessary. We respectfully request that you review the attached clinical evidence and reverse this denial to issue the appropriate payment.
Attached please find:
1. A copy of the original claim.
2. The relevant medical records supporting the service.
3. [Any other supporting documents].
We respectfully request that you reprocess this claim for payment.
Sincerely,
[Your Name]
[Title]
[Practice Name]
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