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ICD-10-CM · FY 2026 APRIL UPDATE

M05.8

Other rheumatoid arthritis with rheumatoid factor

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
M05.80Other rheumatoid arthritis with rheumatoid factor of unspecified siteBillable
M05.81Other rheumatoid arthritis with rheumatoid factor of shoulderCategory
M05.811Other rheumatoid arthritis with rheumatoid factor of right shoulderBillable
M05.812Other rheumatoid arthritis with rheumatoid factor of left shoulderBillable
M05.819Other rheumatoid arthritis with rheumatoid factor of unspecified shoulderBillable
M05.82Other rheumatoid arthritis with rheumatoid factor of elbowCategory
M05.821Other rheumatoid arthritis with rheumatoid factor of right elbowBillable
M05.822Other rheumatoid arthritis with rheumatoid factor of left elbowBillable
M05.829Other rheumatoid arthritis with rheumatoid factor of unspecified elbowBillable
M05.83Other rheumatoid arthritis with rheumatoid factor of wristCategory
M05.831Other rheumatoid arthritis with rheumatoid factor of right wristBillable
M05.832Other rheumatoid arthritis with rheumatoid factor of left wristBillable
M05.839Other rheumatoid arthritis with rheumatoid factor of unspecified wristBillable
M05.84Other rheumatoid arthritis with rheumatoid factor of handCategory
M05.841Other rheumatoid arthritis with rheumatoid factor of right handBillable
M05.842Other rheumatoid arthritis with rheumatoid factor of left handBillable
M05.849Other rheumatoid arthritis with rheumatoid factor of unspecified handBillable
M05.85Other rheumatoid arthritis with rheumatoid factor of hipCategory
M05.851Other rheumatoid arthritis with rheumatoid factor of right hipBillable
M05.852Other rheumatoid arthritis with rheumatoid factor of left hipBillable
M05.859Other rheumatoid arthritis with rheumatoid factor of unspecified hipBillable
M05.86Other rheumatoid arthritis with rheumatoid factor of kneeCategory
M05.861Other rheumatoid arthritis with rheumatoid factor of right kneeBillable
M05.862Other rheumatoid arthritis with rheumatoid factor of left kneeBillable
M05.869Other rheumatoid arthritis with rheumatoid factor of unspecified kneeBillable
M05.87Other rheumatoid arthritis with rheumatoid factor of ankle and footCategory
M05.871Other rheumatoid arthritis with rheumatoid factor of right ankle and footBillable
M05.872Other rheumatoid arthritis with rheumatoid factor of left ankle and footBillable
M05.879Other rheumatoid arthritis with rheumatoid factor of unspecified ankle and footBillable
M05.89Other rheumatoid arthritis with rheumatoid factor of multiple sitesBillable

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.