L40.51 Distal interphalangeal psoriatic arthropathy

Billable ICD-10-CM code, FY2026.

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 81 — Psoriatic Arthropathy
• ESRD V24: HCC 40

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 696.0 Psoriatic arthropathy (approximate)

Code annotations containing back-references to L40.51

Back-references to L40.5

• Type 1 Excludes: M07 Enteropathic arthropathies ("psoriatic arthropathies (L40.5-)")

Diagnosis Index entries for L40.51

• Arthropathy › distal interphalangeal, psoriatic
• Arthropathy › psoriatic NEC › interphalangeal, distal
• Psoriasis › arthropathic › distal interphalangeal

Nearby codes

• L40.2 Acrodermatitis continua
• L40.3 Pustulosis palmaris et plantaris
• L40.4 Guttate psoriasis
• L40.5 Arthropathic psoriasis
• L40.50 Arthropathic psoriasis, unspecified
• L40.51 Distal interphalangeal psoriatic arthropathy (this code)
• L40.52 Psoriatic arthritis mutilans
• L40.53 Psoriatic spondylitis
• L40.54 Psoriatic juvenile arthropathy
• L40.59 Other psoriatic arthropathy
• L40.8 Other psoriasis