MCMedicalCodingSoftware
T50.Z15D

T50.Z15D: Adverse effect of immunoglobulin, subsequent encounter

Billable / specific codeICD-10-CMPOA exempt

T50.Z15D is a billable, specific ICD-10-CM code for adverse effect of immunoglobulin, subsequent encounter. It is valid for submission on a claim.

Check T50.Z15D with the rest of the claim: free scrubber

7th character "D": subsequent encounter

The appropriate 7th character is to be added to each code from category T50

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

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

Medicare coverage

T50.Z15D is named in 7 Medicare coverage policies: 7 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56558Billing and Coding: Allergy Testing
  • A56612Billing and Coding: CT of the Head
  • A56625Billing and Coding: Echocardiography
  • A56844Billing and Coding: RAST Type Tests

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under T50.Z15

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.