T49 — Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
T49 is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category T49
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Includes
Conditions this code covers.
- poisoning by, adverse effect of and underdosing of glucocorticoids, topically used
Other codes that can never be billed with T49
These codes carry an Excludes1 note pointing at T49. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T49 alone.
Risk adjustment
T49 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead T49
10 child codes. Green means billable.
- T49.0Poisoning by, adverse effect of and underdosing of local antifungal, anti-infective and anti-inflammatory drugs
- T49.1Poisoning by, adverse effect of and underdosing of antipruritics
- T49.2Poisoning by, adverse effect of and underdosing of local astringents and local detergents
- T49.3Poisoning by, adverse effect of and underdosing of emollients, demulcents and protectants
- T49.4Poisoning by, adverse effect of and underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations
- T49.5Poisoning by, adverse effect of and underdosing of ophthalmological drugs and preparations
- T49.6Poisoning by, adverse effect of and underdosing of otorhinolaryngological drugs and preparations
- T49.7Poisoning by, adverse effect of and underdosing of dental drugs, topically applied
- T49.8Poisoning by, adverse effect of and underdosing of other topical agents
- T49.9Poisoning by, adverse effect of and underdosing of unspecified topical agent
Questions about T49
- Is T49 a billable ICD-10-CM code?
- No. T49 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T49 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50).