T40.3X
Header — not billablePoisoning by, adverse effect of and underdosing of methadone
The ICD-10 code for poisoning by, adverse effect of and underdosing of methadone is T40.3X.
T40.3X 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.