T49.96XD — Underdosing of unspecified topical agent, subsequent encounter
T49.96XD is a billable, specific ICD-10-CM code for underdosing of unspecified topical agent, subsequent encounter. It is valid for submission on a claim.
7th character "D" — subsequent encounter
The appropriate 7th character is to be added to each code from category T49
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Other codes that can never be billed with T49.96XD
These codes carry an Excludes1 note pointing at T49.96XD. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T49.96XD alone.
- T38.0Poisoning by, adverse effect of and underdosing of glucocorticoids and synthetic analogues
Risk adjustment
T49.96XD 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 history
T49.96XD has not changed since FY2024 — no addition, revision or deletion across the FY2024–FY2027 ICD-10-CM releases.
Related codes at this level
Codes that share T49.96. If T49.96XD is not quite right, the correct code is usually one of these.
Questions about T49.96XD
- Is T49.96XD a billable ICD-10-CM code?
- Yes. T49.96XD is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does T49.96XD 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).