Z51.6

Z51.6: Encounter for desensitization to allergens

Billable / specific codeICD-10-CMPOA exempt

Z51.6 is a billable, specific ICD-10-CM code for encounter for desensitization to allergens. It is valid for submission on a claim.

Check Z51.6 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above Z51.6

A category’s note binds every code beneath it.

Written on Z51: Encounter for other aftercare and medical care

follow-up examination after treatment (Z08-Z09)

Other codes that can never be billed with Z51.6

Their own Excludes1 notes name this code, so the conflict is not listed above.

Z29Encounter for other prophylactic measures

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

Z51.6 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A59101Billing and Coding: Off-label Use of Rituximab and Rituximab Biosimilars

Alphabetic index entries that lead here

Admission›desensitization to allergens
Encounter›desensitization to allergens

Code history

Unchanged in every release from FY2024 to FY2027.