ICD-10 Code L40.54 – Psoriatic juvenile arthropathy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L40.54 – Psoriatic juvenile arthropathy
What it is
L40.54 identifies juvenile psoriatic arthropathy, a type of inflammatory arthritis associated with psoriasis in children or adolescents. Use it when the record documents psoriatic joint disease, not simple skin psoriasis.
Clinical signs
Clinical features vary; refer to documentation. Common findings include joint inflammation with swelling, pain, or stiffness, often alongside psoriasis or a family history of psoriatic disease.
When to use this code
Use this code when the provider documents juvenile psoriatic arthritis, psoriatic juvenile arthropathy, or a clearly equivalent diagnosis. It may also apply when psoriatic arthritis is described in a pediatric patient and the record supports juvenile onset. Check documentation if the note only mentions psoriasis without joint involvement.
Do not use for
Do not use L40.54 for psoriasis alone or for other juvenile arthritides without psoriatic features. If the diagnosis is unclear or another inflammatory arthritis is documented, check documentation.
Coding tip
Confirm both the juvenile nature and the psoriatic arthritis diagnosis in the provider note before assigning L40.54.