ICD-10 Code L60.2 – Onychogryphosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L60.2 – Onychogryphosis
What it is
Onychogryphosis is a nail disorder in which the nail becomes markedly thickened, curved, and elongated. It most often affects a toenail, especially the great toe.
Clinical signs
Typical findings include a claw-like, ram’s-horn appearance, discoloration, and hard, irregular nail plate growth. Clinical features vary; refer to documentation.
When to use this code
Use L60.2 when the provider documents onychogryphosis or describes a severely thickened, curved nail consistent with that diagnosis. Apply it when the nail change is the condition being evaluated or recorded. Check documentation if the note also mentions trauma, fungal disease, or another nail disorder.
Do not use for
Do not use this code for simple nail thickening, nail dystrophy, or fungal nail infection unless onychogryphosis is specifically documented. Check documentation when the chart is nonspecific.
Coding tip
Code the documented nail deformity as written and avoid assuming cause from appearance alone.