Photography not medically necessary (Updated for 2026)

Common Causes for D20

Denials with code D20 typically happen for the following specific reasons:

• The medical record lacked a separate, formal interpretation and report detailing the clinical findings of the photographs.
• The photography was performed for routine monitoring of a stable condition without documented evidence of progression or change.
• The procedure was billed for conditions commonly scrutinized as cosmetic or investigational without sufficient clinical justification of functional impairment.
• Failure to document why standard clinical notes were insufficient to monitor the patient's specific pathology.

How to Prevent D20 Denials

To avoid receiving this denial in the future, implement these specific checks:

• Always document a distinct, written interpretive report in the medical record for all diagnostic photography, outlining how the visual evidence impacts clinical decision-making.
• Verify payer-specific Local Coverage Determinations (LCDs) and diagnostic billing guidelines for covered ICD-10 codes prior to submission.
• Use an Advanced Beneficiary Notice (ABN) or waiver for services that do not meet strict medical necessity criteria or are primarily cosmetic in nature.
• Ensure the medical record clearly establishes the progressive nature of the disease state requiring visual tracking over time.

Appeal Letter Template for D20

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: D20 - Photography not medically necessary

Dear Appeals Department,

I am writing to appeal the denial of the above-referenced claim, which was denied with code D20: "Photography not medically necessary".

We are appealing the denial of the clinical photography service under code D20. According to AMA and CMS billing guidelines, diagnostic photography is medically necessary when used to track the progression or treatment response of an active disease process that cannot be adequately monitored through written documentation alone. The enclosed medical records for the patient demonstrate that the photographs were vital for evaluating the patient's condition and directly influenced the clinical decision-making process. Furthermore, a complete and separate formal interpretive report was documented on the date of service, satisfying all CPT requirements for separate reimbursement. We respectfully request that you review the attached clinical evidence and reverse this denial to process the claim for 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]