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