ICD-10-CM Book 2026 Edition

Chapters ICD-10-CM Book Table of Content /
chapter 3 D50-D89 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism /
D80-D89 Certain disorders involving the immune mechanism /
D89 Other disorders involving the immune mechanism, not elsewhere classified

  Billable ICD-10-CM Code D89.44
D89.44
Hereditary alpha tryptasemia
useAdditionalCode
code, if applicable, for:
allergy status, other than to drugs and biological substances (Z91.0-)
personal history of anaphylaxis (Z87.892)