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ICD-10-CM · FY 2026 APRIL UPDATE

M05.4

Rheumatoid myopathy with rheumatoid 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
M05.40Rheumatoid myopathy with rheumatoid arthritis of unspecified siteBillable
M05.41Rheumatoid myopathy with rheumatoid arthritis of shoulderCategory
M05.411Rheumatoid myopathy with rheumatoid arthritis of right shoulderBillable
M05.412Rheumatoid myopathy with rheumatoid arthritis of left shoulderBillable
M05.419Rheumatoid myopathy with rheumatoid arthritis of unspecified shoulderBillable
M05.42Rheumatoid myopathy with rheumatoid arthritis of elbowCategory
M05.421Rheumatoid myopathy with rheumatoid arthritis of right elbowBillable
M05.422Rheumatoid myopathy with rheumatoid arthritis of left elbowBillable
M05.429Rheumatoid myopathy with rheumatoid arthritis of unspecified elbowBillable
M05.43Rheumatoid myopathy with rheumatoid arthritis of wristCategory
M05.431Rheumatoid myopathy with rheumatoid arthritis of right wristBillable
M05.432Rheumatoid myopathy with rheumatoid arthritis of left wristBillable
M05.439Rheumatoid myopathy with rheumatoid arthritis of unspecified wristBillable
M05.44Rheumatoid myopathy with rheumatoid arthritis of handCategory
M05.441Rheumatoid myopathy with rheumatoid arthritis of right handBillable
M05.442Rheumatoid myopathy with rheumatoid arthritis of left handBillable
M05.449Rheumatoid myopathy with rheumatoid arthritis of unspecified handBillable
M05.45Rheumatoid myopathy with rheumatoid arthritis of hipCategory
M05.451Rheumatoid myopathy with rheumatoid arthritis of right hipBillable
M05.452Rheumatoid myopathy with rheumatoid arthritis of left hipBillable
M05.459Rheumatoid myopathy with rheumatoid arthritis of unspecified hipBillable
M05.46Rheumatoid myopathy with rheumatoid arthritis of kneeCategory
M05.461Rheumatoid myopathy with rheumatoid arthritis of right kneeBillable
M05.462Rheumatoid myopathy with rheumatoid arthritis of left kneeBillable
M05.469Rheumatoid myopathy with rheumatoid arthritis of unspecified kneeBillable
M05.47Rheumatoid myopathy with rheumatoid arthritis of ankle and footCategory
M05.471Rheumatoid myopathy with rheumatoid arthritis of right ankle and footBillable
M05.472Rheumatoid myopathy with rheumatoid arthritis of left ankle and footBillable
M05.479Rheumatoid myopathy with rheumatoid arthritis of unspecified ankle and footBillable
M05.49Rheumatoid myopathy with rheumatoid arthritis 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.