M02.261 – Postimmunization arthropathy, right knee

ICD-10-CM 2027 diagnosis code · Infectious arthropathies

Billable code

ICD-10-CM code M02.261
Code
M02.261 (claims format: M02261)
Description
Postimmunization arthropathy, 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
M00-M02 Infectious arthropathies
Parent codes
M02 › M02.2 › M02.26

Notes inherited from parent codes

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

M02 – Postinfective and reactive arthropathies

Excludes1 (not coded here):
  • Behçet's disease (M35.2)
  • direct infections of joint in infectious and parasitic diseases classified elsewhere (M01.-)
  • postmeningococcal arthritis (A39.84)
  • mumps arthritis (B26.85)
  • rubella arthritis (B06.82)
  • syphilis arthritis (late) (A52.77)
  • rheumatic fever (I00)
  • tabetic arthropathy [Charcôt's] (A52.16)
Code first:
  • underlying disease, such as:
  • congenital syphilis [Clutton's joints] (A50.5)
  • enteritis due to Yersinia enterocolitica (A04.6)
  • infective endocarditis (I33.0)
  • viral hepatitis (B15-B19)

Block M00-M02

Notes:
  • This block comprises arthropathies due to microbiological agents. Distinction is made between the following types of etiological relationship:
  • a) direct infection of joint, where organisms invade synovial tissue and microbial antigen is present in the joint;
  • b) indirect infection, which may be of two types: a reactive arthropathy, where microbial infection of the body is established but neither organisms nor antigens can be identified in the joint, and a postinfective arthropathy, where microbial antigen is present but recovery of an organism is inconstant and evidence of local multiplication is lacking.

Related codes in M02.26

Frequently asked questions

What is ICD-10 code M02.261?

M02.261 is the ICD-10-CM code for postimmunization arthropathy, right knee, in the block M00-M02 (Infectious arthropathies).

Is M02.261 a billable code?

Yes. M02.261 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does M02.261 belong to?

It belongs to category M02 – Postinfective and reactive 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.