U.S. ICD-10-CM · FY 2027

T36 ICD-10-CM Code: Poisoning by, adverse effect of and underdosing of systemic antibiotics

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

T36

Poisoning by, adverse effect of and underdosing of systemic antibiotics

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where T36 sits

  1. 1

    Chapter 19

    Injury, poisoning and certain other consequences of external causes (S00-T88)

  2. 2

    Section

    Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)

  3. 3

    Category T36

    Poisoning by, adverse effect of and underdosing of systemic antibiotics

  4. 4

    Code T36

    Poisoning by, adverse effect of and underdosing of systemic antibiotics

More specific choices

Codes under T36

T36 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for T36.

Code first

No “code first” instruction is listed for T36.

Use additional code

No “use additional code” instruction is listed for T36.

Excludes1

Conditions that should not be reported together with this code.

  • antineoplastic antibiotics (T45.1-)
  • locally applied antibiotic NEC (T49.0)
  • topically used antibiotic for ear, nose and throat (T49.6)
  • topically used antibiotic for eye (T49.5)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for T36.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code T36 mean?

T36 is the FY 2027 U.S. ICD-10-CM code for “Poisoning by, adverse effect of and underdosing of systemic antibiotics.”

Is T36 a billable or specific ICD-10-CM code?

No. T36 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is T36 located in ICD-10-CM?

T36 is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50) (T36–T50), under category T36, Poisoning by, adverse effect of and underdosing of systemic antibiotics.

What coding notes are listed for T36?

No inclusion terms are listed for T36 in this reference record. No code-first instruction is listed. Excludes1 notes: antineoplastic antibiotics (T45.1-); locally applied antibiotic NEC (T49.0); topically used antibiotic for ear, nose and throat (T49.6); topically used antibiotic for eye (T49.5). No Excludes2 note is listed.

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