M05.10

Billable

Rheumatoid lung disease with rheumatoid arthritis of unspecified site

HCC Category Mapping

V28HCC 93 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.175

V24HCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.307

ESRDHCC 40 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.000

RxHCCHCC 83 — Rheumatoid Arthritis and Inflammatory Connective Tissue Disease

0.000

What This Code Means

Rheumatoid arthritis affecting the lungs (causing lung disease) when the specific joint location is not documented.

Coding Tips

•This code requires documentation of both rheumatoid arthritis AND pulmonary involvement; do not assign without evidence of lung disease
•If a specific joint site is documented, use a more specific M05.11x or M05.12x code instead

Clinical Significance

Rheumatoid lung disease with rheumatoid arthritis of unspecified site represents a serious extra-articular manifestation that significantly increases morbidity and mortality risk. This pulmonary complication of rheumatoid arthritis requires specialized pulmonary and rheumatologic care due to the potential for progressive respiratory failure and systemic complications.

Documentation Requirements

✓Documentation of rheumatoid arthritis affecting joints (site unspecified)
✓Evidence of rheumatoid lung disease through imaging or pulmonary function tests
✓Pulmonary manifestations such as pulmonary fibrosis, nodules, or pleuritis
✓Respiratory symptoms and functional impairment assessment
✓Exclusion of other causes of lung disease
✓Current immunosuppressive therapy and monitoring
✓Pulmonology consultation and care coordination
✓Assessment of disease activity in both articular and pulmonary components

Commonly Confused Codes

M05.9 — Seropositive rheumatoid arthritis without lung involvement J84.9 — Interstitial pulmonary disease without rheumatoid arthritis connection M06.9 — Rheumatoid arthritis unspecified without organ involvement J94.8 — Other pleural conditions without rheumatoid arthritis basis M05.111-M05.112 — When specific joint location is actually documented

Code Hierarchy

└M05Rheumatoid arthritis with rheumatoid factor └M05.1Rheumatoid lung disease with rheumatoid arthritis └M05.10Rheumatoid lung disease with rheumatoid arthritis of unspecified site

└M05.10Rheumatoid lung disease with rheumatoid arthritis of unspecified site