ICD-10 Code B45.2 – Cutaneous cryptococcosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B45.2 – Cutaneous cryptococcosis
What it is
This code identifies cryptococcal infection involving the skin. It is used when Cryptococcus causes cutaneous lesions, either as the main site or as part of a wider infection.
Clinical signs
Findings may include papules, nodules, ulcers, or cellulitis-like skin changes. Clinical features vary; refer to documentation, especially when skin disease occurs with known cryptococcosis elsewhere.
When to use this code
Use B45.2 when the record clearly documents cutaneous cryptococcosis or cryptococcal skin involvement. Apply it when the provider links the skin lesion to Cryptococcus infection, even if dissemination is also present.
Do not rely on nonspecific rash descriptions alone. If the note only says “fungal skin infection” or does not identify cryptococcosis, check documentation before coding.
Do not use for
Do not use this code for other fungal skin infections, dermatitis, or an unspecified rash. It is also inappropriate when cryptococcosis is documented only at a noncutaneous site.
Coding tip
Confirm that the provider explicitly documents cutaneous cryptococcosis or cryptococcal skin lesions before assigning B45.2.