M34.9 Systemic sclerosis, unspecified
Billable ICD-10-CM code, FY2026.
Applies from M34 Systemic sclerosis [scleroderma]
Excludes1 (never code together)
- circumscribed scleroderma (L94.0)
- neonatal scleroderma (P83.88)
Risk adjustment (HCC)
- CMS-HCC V28: HCC 93 — Rheumatoid Arthritis and Other Specified Inflammatory Rheumatic Disorders
- CMS-HCC V22: HCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease
- RxHCC V08: HCC 82 — Systemic Sclerosis
- ESRD V24: HCC 40
MS-DRG index
Defines the logic of DRG(s) 545-547 in MDC 08.
Approximate ICD-9-CM (GEMs)
710.1 Systemic sclerosis (approximate)
Code annotations containing back-references to M34.9
Back-references to M34
- Code Also:
I27.21 Secondary pulmonary arterial hypertension ("systemic sclerosis (M34.-)") - Type 2 Excludes:
I77 Other disorders of arteries and arterioles ("collagen (vascular) diseases (M30-M36)") - Type 2 Excludes:
J82 Pulmonary eosinophilia, not elsewhere classified ("pulmonary eosinophilia due to systemic connective tissue disorders (M30-M36)") - Code First:
J84.170 Interstitial lung disease with progressive fibrotic phenotype in diseases classified elsewhere ("systemic connective tissue disorders (M30-M36)") - Code First:
K31.84 Gastroparesis ("scleroderma (M34.-)") - Type 1 Excludes:
L93 Lupus erythematosus ("scleroderma (M34.-)") - Type 1 Excludes:
L94 Other localized connective tissue disorders ("systemic connective tissue disorders (M30-M36)")
Diagnosis Index entries for M34.9
- Scleroderma, sclerodermia (acrosclerotic) (diffuse) (generalized) (progressive) (pulmonary)
- Scleroderma, sclerodermia (acrosclerotic) (diffuse) (generalized) (progressive) (pulmonary) › systemic
- Sclerosis, sclerotic › systemic
- Trophoneurosis NEC › disseminated
Nearby codes
M34.8 Other forms of systemic sclerosisM34.81 Systemic sclerosis with lung involvementM34.82 Systemic sclerosis with myopathyM34.83 Systemic sclerosis with polyneuropathyM34.89 Other systemic sclerosisM34.9 Systemic sclerosis, unspecified (this code)