M34 – Systemic sclerosis [scleroderma]
ICD-10-CM 2027 diagnosis code · Systemic connective tissue disorders
ICD-10-CM code
M34
- Code
M34(claims format:M34)- Description
- Systemic sclerosis [scleroderma]
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
- Block
- M30-M36 Systemic connective tissue disorders
Billable codes under M34
M34 is a header code and cannot be used on claims. Choose the most specific code:
- M34.0 – Progressive systemic sclerosisBillable
- M34.1 – CR(E)ST syndromeBillable
- M34.2 – Systemic sclerosis induced by drug and chemicalBillable
- M34.8 – Other forms of systemic sclerosisHeader (more codes below)
- M34.9 – Systemic sclerosis, unspecifiedBillable
Notes for M34
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block M30-M36
Includes:
- autoimmune disease NOS
- collagen (vascular) disease NOS
- systemic autoimmune disease
- systemic collagen (vascular) disease
Excludes1 (not coded here):
- autoimmune disease, single organ or single cell-type -code to relevant condition category
Frequently asked questions
What is ICD-10 code M34?
M34 is the ICD-10-CM code for systemic sclerosis [scleroderma], in the block M30-M36 (Systemic connective tissue disorders).
Is M34 a billable code?
No. M34 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.