M36.8 – Systemic disorders of connective tissue in other diseases classified elsewhere

ICD-10-CM 2027 diagnosis code · Systemic connective tissue disorders

Billable code

ICD-10-CM code M36.8
Code
M36.8 (claims format: M368)
Description
Systemic disorders of connective tissue in other diseases classified elsewhere
Short description
Systemic disord of conn tiss in oth diseases classd elswhr
Billable
Yes – valid for HIPAA-covered transactions
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
Parent codes
M36

Notes for M36.8

Code first:
  • underlying disease, such as:
  • alkaptonuria (E70.29)
  • hypogammaglobulinemia (D80.-)
  • ochronosis (E70.29)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

M36 – Systemic disorders of connective tissue in diseases classified elsewhere

Excludes2 (not included here):
  • arthropathies in diseases classified elsewhere (M14.-)

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

Index terms for M36.8

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in M36

Frequently asked questions

What is ICD-10 code M36.8?

M36.8 is the ICD-10-CM code for systemic disorders of connective tissue in other diseases classified elsewhere, in the block M30-M36 (Systemic connective tissue disorders).

Is M36.8 a billable code?

Yes. M36.8 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does M36.8 belong to?

It belongs to category M36 – Systemic disorders of connective tissue in diseases classified elsewhere.

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.