M13.80 – Other specified arthritis, unspecified site
ICD-10-CM 2027 diagnosis code · Inflammatory polyarthropathies
ICD-10-CM code
M13.80
- Code
M13.80(claims format:M1380)- Description
- Other specified arthritis, unspecified site
- 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
- M13 › M13.8
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
M13 – Other arthritis
M13.8 – Other specified arthritis
Applicable to:
- Allergic arthritis
Index terms for M13.80
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in M13.8
- M13.81 – Other specified arthritis, shoulderHeader
- M13.82 – Other specified arthritis, elbowHeader
- M13.83 – Other specified arthritis, wristHeader
- M13.84 – Other specified arthritis, handHeader
- M13.85 – Other specified arthritis, hipHeader
- M13.86 – Other specified arthritis, kneeHeader
- M13.87 – Other specified arthritis, ankle and footHeader
- M13.88 – Other specified arthritis, other siteBillable
- M13.89 – Other specified arthritis, multiple sitesBillable
Frequently asked questions
What is ICD-10 code M13.80?
M13.80 is the ICD-10-CM code for other specified arthritis, unspecified site, in the block M05-M14 (Inflammatory polyarthropathies).
Is M13.80 a billable code?
Yes. M13.80 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does M13.80 belong to?
It belongs to category M13 – Other arthritis.
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.