T37.2 — Poisoning by, adverse effect of and underdosing of antimalarials and drugs acting on other blood protozoa
T37.2 is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of antimalarials and drugs acting on other blood protozoa. 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 T37
- 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.
- hydroxyquinoline derivatives (T37.8-)
Other codes that can never be billed with T37.2
These codes carry an Excludes1 note pointing at T37.2. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading T37.2 alone.
- T37.8Poisoning by, adverse effect of and underdosing of other specified systemic anti-infectives and antiparasitics
Risk adjustment
T37.2 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 T37.2
1 child code. Green means billable.
Related codes at this level
Codes that share T37. If T37.2 is not quite right, the correct code is usually one of these.
- T37.0Poisoning by, adverse effect of and underdosing of sulfonamides
- T37.1Poisoning by, adverse effect of and underdosing of antimycobacterial drugs
- T37.3Poisoning by, adverse effect of and underdosing of other antiprotozoal drugs
- T37.4Poisoning by, adverse effect of and underdosing of anthelminthics
- T37.5Poisoning by, adverse effect of and underdosing of antiviral drugs
- T37.8Poisoning by, adverse effect of and underdosing of other specified systemic anti-infectives and antiparasitics
- T37.9Poisoning by, adverse effect of and underdosing of unspecified systemic anti-infective and antiparasitics
Questions about T37.2
- Is T37.2 a billable ICD-10-CM code?
- No. T37.2 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T37.2 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).
- What cannot be coded together with T37.2?
- T37.2 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.