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T37.1X3A

T37.1X3A: Poisoning by antimycobacterial drugs, assault, initial encounter

Billable / specific codeICD-10-CM

T37.1X3A is a billable, specific ICD-10-CM code for poisoning by antimycobacterial drugs, assault, initial encounter. It is valid for submission on a claim.

Check T37.1X3A with the rest of the claim: free scrubber

7th character "A": initial encounter

The appropriate 7th character is to be added to each code from category T37

A
initial encounter
D
subsequent encounter
S
sequela

Excludes1 inherited from the categories above T37.1X3A

A category’s note binds every code beneath it.

Written on T37.1: Poisoning by, adverse effect of and underdosing of antimycobacterial drugs

Written on T37: Poisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasitics

  • anti-infectives topically used for ear, nose and throat (T49.6-)
  • anti-infectives topically used for eye (T49.5-)
  • locally applied anti-infectives NEC (T49.0-)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

T37.1X3A is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A57205Billing and Coding: Oximetry Services

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under T37.1X3

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.