M35: Other systemic involvement of connective tissue
Codes under M35 (Other systemic involvement of connective tissue). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| M35.0 | Sjogren syndrome | — |
| M35.0 | Sjogren syndrome | — |
| M35.00 | Sjogren syndrome, unspecified | ✓ |
| M35.00 | Sjogren syndrome, unspecified | ✓ |
| M35.0A | Sjogren syndrome with glomerular disease | ✓ |
| M35.0A | Sjogren syndrome with glomerular disease | ✓ |
| M35.0B | Sjogren syndrome with vasculitis | ✓ |
| M35.0B | Sjogren syndrome with vasculitis | ✓ |
| M35.0C | Sjogren syndrome with dental involvement | ✓ |
| M35.0C | Sjogren syndrome with dental involvement | ✓ |
| M35.01 | Sjogren syndrome with keratoconjunctivitis | ✓ |
| M35.01 | Sjogren syndrome with keratoconjunctivitis | ✓ |
| M35.1 | Other overlap syndromes | ✓ |
| M35.1 | Other overlap syndromes | ✓ |
| M35.02 | Sjogren syndrome with lung involvement | ✓ |
| M35.02 | Sjogren syndrome with lung involvement | ✓ |
| M35.2 | Behcet's disease | ✓ |
| M35.2 | Behcet's disease | ✓ |
| M35.03 | Sjogren syndrome with myopathy | ✓ |
| M35.03 | Sjogren syndrome with myopathy | ✓ |
| M35.3 | Polymyalgia rheumatica | ✓ |
| M35.3 | Polymyalgia rheumatica | ✓ |
| M35.04 | Sjogren syndrome with tubulo-interstitial nephropathy | ✓ |
| M35.04 | Sjogren syndrome with tubulo-interstitial nephropathy | ✓ |
| M35.4 | Diffuse (eosinophilic) fasciitis | ✓ |
| M35.4 | Diffuse (eosinophilic) fasciitis | ✓ |
| M35.05 | Sjogren syndrome with inflammatory arthritis | ✓ |
| M35.05 | Sjogren syndrome with inflammatory arthritis | ✓ |
| M35.5 | Multifocal fibrosclerosis | ✓ |
| M35.5 | Multifocal fibrosclerosis | ✓ |
| M35.06 | Sjogren syndrome with peripheral nervous system involvement | ✓ |
| M35.06 | Sjogren syndrome with peripheral nervous system involvement | ✓ |
| M35.6 | Relapsing panniculitis [Weber-Christian] | ✓ |
| M35.6 | Relapsing panniculitis [Weber-Christian] | ✓ |
| M35.07 | Sjogren syndrome with central nervous system involvement | ✓ |
| M35.07 | Sjogren syndrome with central nervous system involvement | ✓ |
| M35.7 | Hypermobility syndrome | ✓ |
| M35.7 | Hypermobility syndrome | ✓ |
| M35.08 | Sjogren syndrome with gastrointestinal involvement | ✓ |
| M35.08 | Sjogren syndrome with gastrointestinal involvement | ✓ |
| M35.8 | Other specified systemic involvement of connective tissue | — |
| M35.8 | Other specified systemic involvement of connective tissue | — |
| M35.09 | Sjogren syndrome with other organ involvement | ✓ |
| M35.09 | Sjogren syndrome with other organ involvement | ✓ |
| M35.9 | Systemic involvement of connective tissue, unspecified | ✓ |
| M35.9 | Systemic involvement of connective tissue, unspecified | ✓ |
| M35.81 | Multisystem inflammatory syndrome | ✓ |
| M35.81 | Multisystem inflammatory syndrome | ✓ |
| M35.89 | Other specified systemic involvement of connective tissue | ✓ |
| M35.89 | Other specified systemic involvement of connective tissue | ✓ |
Frequently asked questions
What is ICD-10-CM code M35?
M35 is an ICD-10-CM category covering Other systemic involvement of connective tissue. It contains 50 more specific diagnosis codes, 46 of which are billable.
Is M35 a billable code?
No — M35 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example M35.0 — Sjogren syndrome). 46 of the 50 codes under M35 are billable.
What codes fall under M35?
M35 includes M35.0, M35.0, M35.00, M35.00, M35.0A, plus 45 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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