T44.99
Header — not billablePoisoning by, adverse effect of and underdosing of other drugs primarily affecting the autonomic nervous system
The ICD-10 code for poisoning by, adverse effect of and underdosing of other drugs primarily affecting the autonomic nervous system is T44.99.
T44.99 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 T44.99
- T44.991Poisoning by other drug primarily affecting the autonomic nervous system, accidental (unintentional)
- T44.992Poisoning by other drug primarily affecting the autonomic nervous system, intentional self-harm
- T44.993Poisoning by other drug primarily affecting the autonomic nervous system, assault
- T44.994Poisoning by other drug primarily affecting the autonomic nervous system, undetermined
- T44.995Adverse effect of other drug primarily affecting the autonomic nervous system
- T44.996Underdosing of other drug primarily affecting the autonomic nervous system
Related codes in this category
- T44.90Poisoning by, adverse effect of and underdosing of unspecified drugs primarily affecting the autonomic nervous systemnon-billable header
- T44.99Poisoning by, adverse effect of and underdosing of other drugs primarily affecting the autonomic nervous systemnon-billable header