ICD-10 Code E70.320 – Tyrosinase negative oculocutaneous albinism (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E70.320 – Tyrosinase negative oculocutaneous albinism
What it is
E70.320 identifies tyrosinase negative oculocutaneous albinism, a genetic disorder of melanin production. It causes markedly reduced or absent pigment in the skin, hair, and eyes.
Clinical signs
Typical findings include very light skin and hair, visual impairment, nystagmus, and reduced ocular pigmentation. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents tyrosinase negative oculocutaneous albinism specifically. It is appropriate for confirmed congenital albinism with this subtype named in the record. If the subtype is not stated, check documentation before coding.
Do not use for
Do not use this code for general hypopigmentation, acquired pigment loss, or other albinism types that are not documented as tyrosinase negative. Check documentation.
Coding tip
Code the most specific albinism subtype documented; if the subtype is unclear, query the provider.