T42Non-billable
Poisoning by, adverse effect of and underdosing of antiepileptic, sedative- hypnotic and antiparkinsonism drugs
Chapter 19: Injury, poisoning and certain other consequences of external causes
Coding Guidance
T42 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail. See Related Codes to drill down to more specific billable codes for appropriate reimbursement.
7th Character Information
The appropriate 7th character is to be added to each code from category T42
7th Character Values:
- •A: initial encounter
- •D: subsequent encounter
- •S: sequela
Additional Information from Parent Codes
The following information may apply to this code from its parent codes in the ICD-10 hierarchy. This information is important for proper coding and classification.
Parent Codes Referenced:
Excludes1
2 items
Excludes1
Use Additional Code
1 item
Use Additional Code
From S00-T88:
- •code to identify any retained foreign body, if applicable (Z18.-)