T88.7
ICD-10Non-billable categoryUnspecified adverse effect of drug or medicament
Official ICD-10-CM descriptor (FY2026)
Unspecified adverse effect of drug or medicament
T88.7 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- Drug hypersensitivity NOS
- Drug reaction NOS
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- specified adverse effects of drugs and medicaments (A00-R94 and T80-T88.6, T88.8)
Use additional code
Report an additional code to identify the associated condition.
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Related codes in T88
- T88.0Infection following immunizationcategory
- T88.1Oth complications following immunization, NECcategory
- T88.2Shock due to anesthesiacategory
- T88.3Malignant hyperthermia due to anesthesiacategory
- T88.4Failed or difficult intubationcategory
- T88.5Other complications of anesthesiacategory
- T88.6Anaphylactic reaction due to advrs eff drug/med prop admincategory
- T88.8Oth complications of surgical and medical care, NECcategory
- T88.9Complication of surgical and medical care, unspecifiedcategory
Where this code sits
- Parent code
- T88
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.