T50.99

Header — not billable

Poisoning by, adverse effect of and underdosing of other drugs, medicaments and biological substances

The ICD-10 code for poisoning by, adverse effect of and underdosing of other drugs, medicaments and biological substances is T50.99.

T50.99 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 6 more specific codes below.

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Child codes under T50.99

Related codes in this category

T50.90Poisoning by, adverse effect of and underdosing of unspecified drugs, medicaments and biological substancesnon-billable header
T50.91Poisoning by, adverse effect of and underdosing of multiple unspecified drugs, medicaments and biological substancesnon-billable header
T50.99Poisoning by, adverse effect of and underdosing of other drugs, medicaments and biological substancesnon-billable header