M11.861 – Other specified crystal arthropathies, right knee
ICD-10-CM 2027 diagnosis code · Inflammatory polyarthropathies
ICD-10-CM code
M11.861
- Code
M11.861(claims format:M11861)- Description
- Other specified crystal arthropathies, right knee
- 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 › M11.8 › M11.86
Related codes in M11.86
Frequently asked questions
What is ICD-10 code M11.861?
M11.861 is the ICD-10-CM code for other specified crystal arthropathies, right knee, in the block M05-M14 (Inflammatory polyarthropathies).
Is M11.861 a billable code?
Yes. M11.861 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does M11.861 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.