M36 – Systemic disorders of connective tissue in diseases classified elsewhere
ICD-10-CM 2027 diagnosis code · Systemic connective tissue disorders
ICD-10-CM code
M36
- Code
M36(claims format:M36)- Description
- Systemic disorders of connective tissue in diseases classified elsewhere
- Short description
- Systemic disorders of conn tiss in diseases classd elswhr
- 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 M36
M36 is a header code and cannot be used on claims. Choose the most specific code:
- M36.0 – Dermato(poly)myositis in neoplastic diseaseBillable
- M36.1 – Arthropathy in neoplastic diseaseBillable
- M36.2 – Hemophilic arthropathyBillable
- M36.3 – Arthropathy in other blood disordersBillable
- M36.4 – Arthropathy in hypersensitivity reactions classified elsewhereBillable
- M36.8 – Systemic disorders of connective tissue in other diseases classified elsewhereBillable
Notes for M36
Excludes2 (not included here):
- arthropathies in diseases classified elsewhere (M14.-)
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 M36?
M36 is the ICD-10-CM code for systemic disorders of connective tissue in diseases classified elsewhere, in the block M30-M36 (Systemic connective tissue disorders).
Is M36 a billable code?
No. M36 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.