Skip to main content

M05.241 vs M05.242

M05.241 (Rheumatoid vasculitis with rheumatoid arthritis of right hand) compared with M05.242 (Rheumatoid vasculitis with rheumatoid arthritis of left hand), from the official CMS tabular data. M05.241 and M05.242 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

M05.241
Right
Rheumatoid vasculitis with rheumatoid arthritis of right hand
M05.242
Left
Rheumatoid vasculitis with rheumatoid arthritis of left hand

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. M05.241 and M05.242 name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

M05.241Rheumatoid vasculitis with rheumatoid arthritis of right handM05.242Rheumatoid vasculitis with rheumatoid arthritis of left hand
Billing statusBillableBillable
ClassificationM00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99)M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99)
DefinitionRheumatoid vasculitis with rheumatoid arthritis of right hand is a billable ICD-10-CM diagnosis code (M05.241).Rheumatoid vasculitis with rheumatoid arthritis of left hand is a billable ICD-10-CM diagnosis code (M05.242).

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources