M11.9 Crystal arthropathy, unspecified

Billable ICD-10-CM code, FY2026.

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 712.90 Unspecified crystal arthropathy, site unspecified (approximate)

Diagnosis Index entries for M11.9

• Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › in (due to) › crystals

Nearby codes

• M11.871 Other specified crystal arthropathies, right ankle and foot
• M11.872 Other specified crystal arthropathies, left ankle and foot
• M11.879 Other specified crystal arthropathies, unspecified ankle and foot
• M11.88 Other specified crystal arthropathies, vertebrae
• M11.89 Other specified crystal arthropathies, multiple sites
• M11.9 Crystal arthropathy, unspecified (this code)