M12.361 Palindromic rheumatism, right knee

Billable ICD-10-CM code, FY2026.

Applies from M12 Other and unspecified arthropathy

Excludes1 (never code together)

• arthrosis (M15-M19)
• cricoarytenoid arthropathy (J38.7)

MS-DRG index

Defines the logic of DRG(s) 553-554 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 719.36 Palindromic rheumatism, lower leg (approximate)

Code annotations containing back-references to M12.361

Back-references to M12.3

• Type 1 Excludes: M67.3 Transient synovitis ("palindromic rheumatism (M12.3-)")
• Type 1 Excludes: M79.0 Rheumatism, unspecified ("palindromic rheumatism (M12.3-)")

Nearby codes

• M12.35 Palindromic rheumatism, hip
• M12.351 Palindromic rheumatism, right hip
• M12.352 Palindromic rheumatism, left hip
• M12.359 Palindromic rheumatism, unspecified hip
• M12.36 Palindromic rheumatism, knee
• M12.361 Palindromic rheumatism, right knee (this code)
• M12.362 Palindromic rheumatism, left knee
• M12.369 Palindromic rheumatism, unspecified knee
• M12.37 Palindromic rheumatism, ankle and foot
• M12.371 Palindromic rheumatism, right ankle and foot
• M12.372 Palindromic rheumatism, left ankle and foot