T37 — Poisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasitics
Not billable
Is T37 billable?
No — T37 is a non-billable header code. T37 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 60 billable codes beneath T37.
Billable codes under this header
- T37.91XAPoisoning by unspecified systemic anti-infective and antiparasitics, accidental (unintentional), initial encounter
- T37.91XDPoisoning by unspecified systemic anti-infective and antiparasitics, accidental (unintentional), subsequent encounter
- T37.91XSPoisoning by unspecified systemic anti-infective and antiparasitics, accidental (unintentional), sequela
- T37.92XAPoisoning by unspecified systemic anti-infective and antiparasitics, intentional self-harm, initial encounter
- T37.92XDPoisoning by unspecified systemic anti-infective and antiparasitics, intentional self-harm, subsequent encounter
- T37.92XSPoisoning by unspecified systemic anti-infective and antiparasitics, intentional self-harm, sequela
- T37.93XAPoisoning by unspecified systemic anti-infective and antiparasitics, assault, initial encounter
- T37.93XDPoisoning by unspecified systemic anti-infective and antiparasitics, assault, subsequent encounter
- T37.93XSPoisoning by unspecified systemic anti-infective and antiparasitics, assault, sequela
- T37.94XAPoisoning by unspecified systemic anti-infective and antiparasitics, undetermined, initial encounter
- T37.94XDPoisoning by unspecified systemic anti-infective and antiparasitics, undetermined, subsequent encounter
- T37.94XSPoisoning by unspecified systemic anti-infective and antiparasitics, undetermined, sequela
- T37.95XAAdverse effect of unspecified systemic anti-infective and antiparasitic, initial encounter
- T37.95XDAdverse effect of unspecified systemic anti-infective and antiparasitic, subsequent encounter
- T37.95XSAdverse effect of unspecified systemic anti-infective and antiparasitic, sequela
- T37.96XAUnderdosing of unspecified systemic anti-infectives and antiparasitics, initial encounter
- T37.96XDUnderdosing of unspecified systemic anti-infectives and antiparasitics, subsequent encounter
- T37.96XSUnderdosing of unspecified systemic anti-infectives and antiparasitics, sequela
- T37.0X1APoisoning by sulfonamides, accidental (unintentional), initial encounter
- T37.0X1DPoisoning by sulfonamides, accidental (unintentional), subsequent encounter
- T37.0X1SPoisoning by sulfonamides, accidental (unintentional), sequela
- T37.0X2APoisoning by sulfonamides, intentional self-harm, initial encounter
- T37.0X2DPoisoning by sulfonamides, intentional self-harm, subsequent encounter
- T37.0X2SPoisoning by sulfonamides, intentional self-harm, sequela
- T37.0X3APoisoning by sulfonamides, assault, initial encounter
- T37.0X3DPoisoning by sulfonamides, assault, subsequent encounter
- T37.0X3SPoisoning by sulfonamides, assault, sequela
- T37.0X4APoisoning by sulfonamides, undetermined, initial encounter
- T37.0X4DPoisoning by sulfonamides, undetermined, subsequent encounter
- T37.0X4SPoisoning by sulfonamides, undetermined, sequela
- T37.0X5AAdverse effect of sulfonamides, initial encounter
- T37.0X5DAdverse effect of sulfonamides, subsequent encounter
- T37.0X5SAdverse effect of sulfonamides, sequela
- T37.0X6AUnderdosing of sulfonamides, initial encounter
- T37.0X6DUnderdosing of sulfonamides, subsequent encounter
- T37.0X6SUnderdosing of sulfonamides, sequela
- T37.1X1APoisoning by antimycobacterial drugs, accidental (unintentional), initial encounter
- T37.1X1DPoisoning by antimycobacterial drugs, accidental (unintentional), subsequent encounter
- T37.1X1SPoisoning by antimycobacterial drugs, accidental (unintentional), sequela
- T37.1X2APoisoning by antimycobacterial drugs, intentional self-harm, initial encounter
- T37.1X2DPoisoning by antimycobacterial drugs, intentional self-harm, subsequent encounter
- T37.1X2SPoisoning by antimycobacterial drugs, intentional self-harm, sequela
- T37.1X3APoisoning by antimycobacterial drugs, assault, initial encounter
- T37.1X3DPoisoning by antimycobacterial drugs, assault, subsequent encounter
- T37.1X3SPoisoning by antimycobacterial drugs, assault, sequela
- T37.1X4APoisoning by antimycobacterial drugs, undetermined, initial encounter
- T37.1X4DPoisoning by antimycobacterial drugs, undetermined, subsequent encounter
- T37.1X4SPoisoning by antimycobacterial drugs, undetermined, sequela
- T37.1X5AAdverse effect of antimycobacterial drugs, initial encounter
- T37.1X5DAdverse effect of antimycobacterial drugs, subsequent encounter
- T37.1X5SAdverse effect of antimycobacterial drugs, sequela
- T37.1X6AUnderdosing of antimycobacterial drugs, initial encounter
- T37.1X6DUnderdosing of antimycobacterial drugs, subsequent encounter
- T37.1X6SUnderdosing of antimycobacterial drugs, sequela
- T37.2X1APoisoning by antimalarials and drugs acting on other blood protozoa, accidental (unintentional), initial encounter
- T37.2X1DPoisoning by antimalarials and drugs acting on other blood protozoa, accidental (unintentional), subsequent encounter
- T37.2X1SPoisoning by antimalarials and drugs acting on other blood protozoa, accidental (unintentional), sequela
- T37.2X2APoisoning by antimalarials and drugs acting on other blood protozoa, intentional self-harm, initial encounter
- T37.2X2DPoisoning by antimalarials and drugs acting on other blood protozoa, intentional self-harm, subsequent encounter
- T37.2X2SPoisoning by antimalarials and drugs acting on other blood protozoa, intentional self-harm, sequela
T37 at a glance
| Code | T37 |
|---|---|
| Description | Poisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasitics |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with T37 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from T36-T50
The conditions below can never be reported together with T37 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- toxic reaction to local anesthesia in pregnancy (O29.3-)
Code first — inherited from T36-T50
The underlying condition below must be sequenced before T37. T37 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T37 to fully describe the condition. T37 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T36-T50
Report an additional code alongside T37 to fully describe the condition. T37 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T37, but a patient may have both at the same time. When documentation supports it, T37 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T37, but a patient may have both at the same time. When documentation supports it, T37 and the excluded code may both be reported.
What codes fall under T37? (8)
- T37.0Poisoning by, adverse effect of and underdosing of sulfonamidesnot billable
- T37.1Poisoning by, adverse effect of and underdosing of antimycobacterial drugsnot billable
- T37.2Poisoning by, adverse effect of and underdosing of antimalarials and drugs acting on other blood protozoanot billable
- T37.3Poisoning by, adverse effect of and underdosing of other antiprotozoal drugsnot billable
- T37.4Poisoning by, adverse effect of and underdosing of anthelminthicsnot billable
- T37.5Poisoning by, adverse effect of and underdosing of antiviral drugsnot billable
- T37.8Poisoning by, adverse effect of and underdosing of other specified systemic anti-infectives and antiparasiticsnot billable
- T37.9Poisoning by, adverse effect of and underdosing of unspecified systemic anti-infective and antiparasiticsnot billable
How long has T37 existed?
T37 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Description changes
- FY2019Poisoning by, adverse effect of and underdosing of other systemic anti- infectives and antiparasiticsPoisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasitics
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.