ICD-10 M35.6
Billable / SpecificRelapsing panniculitis [Weber-Christian]
About ICD-10-CM M35.6
ICD-10-CM code M35.6 represents Relapsing panniculitis [Weber-Christian]. This is a billable/specific code in the Musculoskeletal and Connective Tissue chapter (block M35). The 2026 edition of ICD-10-CM M35.6 became effective on October 1, 2025.
Type 1 Excludes
Pure excludes, these codes can never be coded together with M35.6. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- lupus panniculitis (L93.2)
- panniculitis NOS (M79.3-)
Medicare LCD Coverage for M35.6
Local Coverage Determinations (LCDs) from CMS MACs that list M35.6 as a covered diagnosis.
Showing top 10 of 116 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing M35.6.
1 Medicare
CPT Codes Commonly Billed with M35.6
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert M35.6 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| M35.6 | 72930 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To M35.6
Other codes in section M30-M36 (Systemic connective tissue disorders).
ICD-10 M35.6, Billing FAQ
Is ICD-10 code M35.6 billable? +
Yes, M35.6 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What codes are Type 1 Excludes for M35.6? +
Type 1 Excludes (never code together with M35.6): lupus panniculitis (L93.2); panniculitis NOS (M79.3-)
What ICD-9 codes does M35.6 map to? +
Per CMS GEMs, M35.6 maps to ICD-9 codes: 72930. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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