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Z51.6

Billable

Encounter for desensitization to allergens

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A visit for allergy desensitization treatment, where a patient receives gradual exposure to allergens to reduce allergic reactions over time.

Coding Tips

  • •Use this code for immunotherapy sessions or allergy shots administered during an encounter
  • •This is a preventive/therapeutic encounter code, not a diagnosis code

Code Hierarchy

└Z51Encounter for other aftercare and medical care└Z51.6Encounter for desensitization to allergens
└Z51.6Encounter for desensitization to allergens

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