M11.9 – Crystal arthropathy, unspecified
ICD-10-CM 2027 diagnosis code · Inflammatory polyarthropathies
ICD-10-CM code
M11.9
- Code
M11.9(claims format:M119)- Description
- Crystal arthropathy, unspecified
- 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
- M05-M14 Inflammatory polyarthropathies
- Parent codes
- M11
Index terms for M11.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in M11
Frequently asked questions
What is ICD-10 code M11.9?
M11.9 is the ICD-10-CM code for crystal arthropathy, unspecified, in the block M05-M14 (Inflammatory polyarthropathies).
Is M11.9 a billable code?
Yes. M11.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does M11.9 belong to?
It belongs to category M11 – Other crystal arthropathies.
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.