M11.8 Other specified crystal arthropathies

Not billable (header)Chapter 13

Report one of the more specific codes below.

Check coverage with this diagnosis

Codes under this one

M11.80 Other specified crystal arthropathies, unspecified site
M11.81 Other specified crystal arthropathies, shoulderHeader
M11.82 Other specified crystal arthropathies, elbowHeader
M11.83 Other specified crystal arthropathies, wristHeader
M11.84 Other specified crystal arthropathies, handHeader
M11.85 Other specified crystal arthropathies, hipHeader
M11.86 Other specified crystal arthropathies, kneeHeader
M11.87 Other specified crystal arthropathies, ankle and footHeader
M11.88 Other specified crystal arthropathies, vertebrae
M11.89 Other specified crystal arthropathies, multiple sites

Instructional notes

Chapter 13

Excludes2Not included here: the patient may have both; report both when both are present.

arthropathic psoriasis (L40.5-)
certain conditions originating in the perinatal period (P04-P96)
certain infectious and parasitic diseases (A00-B99)
compartment syndrome (traumatic) (T79.A-)
complications of pregnancy, childbirth and the puerperium (O00-O9A)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
endocrine, nutritional and metabolic diseases (E00-E88)
injury, poisoning and certain other consequences of external causes (S00-T88)
neoplasms (C00-D49)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Notes

Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Section M00-M25

Includes

Disorders affecting predominantly peripheral (limb) joints

Chapter 13: Diseases of the musculoskeletal system and connective tissue · M00-M25 Arthropathies (M00-M25)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.