T75 — Other and unspecified effects of other external causes
T75 is a non-billable header ICD-10-CM code for other and unspecified effects of other external causes. 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 T75
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- adverse effects NEC (T78.-)
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
Other codes that can never be billed with T75
These codes carry an Excludes1 note pointing at T75. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T75 alone.
Risk adjustment
T75 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
T75 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead T75
6 child codes. Green means billable.
Questions about T75
- Is T75 a billable ICD-10-CM code?
- No. T75 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T75 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Other and unspecified effects of external causes (T66-T78).
- What cannot be coded together with T75?
- T75 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.