`M05.452` Rheumatoid myopathy with rheumatoid arthritis of left hip

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from M05 Rheumatoid arthritis with rheumatoid factor

Excludes1 (never code together)

rheumatic fever (I00)
juvenile rheumatoid arthritis (M08.-)
rheumatoid arthritis of spine (M45.-)

Risk adjustment (HCC)

CMS-HCC V28: HCC 93 — Rheumatoid Arthritis and Other Specified Inflammatory Rheumatic Disorders
CMS-HCC V22: HCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease
RxHCC V08: HCC 83 — Rheumatoid Arthritis and Other Inflammatory Polyarthropathy
ESRD V24: HCC 40

MS-DRG index

Defines the logic of DRG(s) 545-547 in MDC 08.

Approximate ICD-9-CM (GEMs)

359.6 Symptomatic inflammatory myopathy in diseases classified elsewhere (approximate)
714.0 Rheumatoid arthritis (approximate)

Code annotations containing back-references to M05.452

Back-references to M05

Code Also: I27.21 Secondary pulmonary arterial hypertension ("rheumatoid arthritis (M05.-)")
Type 1 Excludes: R76.81 Abnormal rheumatoid factor and anti-citrullinated protein antibody without rheumatoid arthritis ("rheumatoid arthritis with rheumatoid factor (M05.-)")

Nearby codes

M05.441 Rheumatoid myopathy with rheumatoid arthritis of right hand
M05.442 Rheumatoid myopathy with rheumatoid arthritis of left hand
M05.449 Rheumatoid myopathy with rheumatoid arthritis of unspecified hand
M05.45 Rheumatoid myopathy with rheumatoid arthritis of hip
M05.451 Rheumatoid myopathy with rheumatoid arthritis of right hip
M05.452 Rheumatoid myopathy with rheumatoid arthritis of left hip (this code)
M05.459 Rheumatoid myopathy with rheumatoid arthritis of unspecified hip
M05.46 Rheumatoid myopathy with rheumatoid arthritis of knee
M05.461 Rheumatoid myopathy with rheumatoid arthritis of right knee
M05.462 Rheumatoid myopathy with rheumatoid arthritis of left knee
M05.469 Rheumatoid myopathy with rheumatoid arthritis of unspecified knee