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ICD-10-CM · FY 2026 APRIL UPDATE

M13.8

Other specified arthritis

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
M13.80Other specified arthritis, unspecified siteBillable
M13.81Other specified arthritis, shoulderCategory
M13.811Other specified arthritis, right shoulderBillable
M13.812Other specified arthritis, left shoulderBillable
M13.819Other specified arthritis, unspecified shoulderBillable
M13.82Other specified arthritis, elbowCategory
M13.821Other specified arthritis, right elbowBillable
M13.822Other specified arthritis, left elbowBillable
M13.829Other specified arthritis, unspecified elbowBillable
M13.83Other specified arthritis, wristCategory
M13.831Other specified arthritis, right wristBillable
M13.832Other specified arthritis, left wristBillable
M13.839Other specified arthritis, unspecified wristBillable
M13.84Other specified arthritis, handCategory
M13.841Other specified arthritis, right handBillable
M13.842Other specified arthritis, left handBillable
M13.849Other specified arthritis, unspecified handBillable
M13.85Other specified arthritis, hipCategory
M13.851Other specified arthritis, right hipBillable
M13.852Other specified arthritis, left hipBillable
M13.859Other specified arthritis, unspecified hipBillable
M13.86Other specified arthritis, kneeCategory
M13.861Other specified arthritis, right kneeBillable
M13.862Other specified arthritis, left kneeBillable
M13.869Other specified arthritis, unspecified kneeBillable
M13.87Other specified arthritis, ankle and footCategory
M13.871Other specified arthritis, right ankle and footBillable
M13.872Other specified arthritis, left ankle and footBillable
M13.879Other specified arthritis, unspecified ankle and footBillable
M13.88Other specified arthritis, other siteBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.