NPI Atlas

L40.51 – Distal interphalangeal psoriatic arthropathy

ICD-10-CM 2027 diagnosis code · Papulosquamous disorders

Billable code

ICD-10-CM code L40.51

Code: L40.51 (claims format: L4051)
Description: Distal interphalangeal psoriatic arthropathy
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 12. Diseases of the skin and subcutaneous tissue (L00-L99)
Block: L40-L45 Papulosquamous disorders
Parent codes: L40 › L40.5

Index terms for L40.51

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in L40.5

L40.50 – Arthropathic psoriasis, unspecifiedBillable
L40.52 – Psoriatic arthritis mutilansBillable
L40.53 – Psoriatic spondylitisBillable
L40.54 – Psoriatic juvenile arthropathyBillable
L40.59 – Other psoriatic arthropathyBillable

Frequently asked questions

What is ICD-10 code L40.51?

L40.51 is the ICD-10-CM code for distal interphalangeal psoriatic arthropathy, in the block L40-L45 (Papulosquamous disorders).

Is L40.51 a billable code?

Yes. L40.51 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does L40.51 belong to?

It belongs to category L40 – Psoriasis.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.