2021 ICD-10-CM Code T37.91

Poisoning by unspecified systemic anti-infective and antiparasitics, accidental (unintentional)

Version 2021
Replaced Code
Non-Billable Code
Unspecified Code
Poisoning Accidental

Not Valid for Submission

T37.91 is a "header" nonspecific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of poisoning by unspecified systemic anti-infective and antiparasitics, accidental (unintentional). The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Unspecified diagnosis codes like T37.91 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

ICD-10:T37.91
Short Description:Poisoning by unsp systemic anti-infect and antiparastc, acc
Long Description:Poisoning by unspecified systemic anti-infective and antiparasitics, accidental (unintentional)

Code Classification

Specific Coding for Poisoning by unsp systemic anti-infect and antiparastc, acc

Header codes like T37.91 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for poisoning by unsp systemic anti-infect and antiparastc, acc:

Replaced Code

This code was replaced in the 2021 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2020. This code was replaced for the FY 2021 (October 1, 2020 - September 30, 2021).


  • K59.03 - Drug induced constipation

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code T37.91:


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.

Table of Drugs and Chemicals

The code T37.91 is included in the Table of Drugs and Chemicals, this table contains a classification of drugs, industrial solvents, corrosive gases, noxious plants, pesticides, and other toxic agents. According to ICD-10 coding guidelines it is advised to do not code directly from the Table of Drugs and Chemicals, instead always refer back to the Tabular List when doing the initial coding. Each substance in the table is assigned a code according to the poisoning classification and external causes of adverse effects. It is important to use as many codes as necessary to specify all reported drugs, medicinal or chemical substances. If the same diagnosis code describes the causative agent for more than one adverse reaction, poisoning, toxic effect or underdosing, utilize the code only once.

Substance Poisoning
Accidental
(unintentional)
Poisoning
Accidental
self-harm
Poisoning
Assault
Poisoning
Undetermined
Adverse
effect
Underdosing
AcriflavineT37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NECT37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »anthelmintic
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »antibiotics
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »antibiotics
    »specified NEC
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »antimalarial
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »antimycobacterial NEC
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »antimycobacterial NEC
    »antibiotics
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »antiprotozoal NEC
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »antiprotozoal NEC
    »blood
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »antiviral
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »arsenical
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »bismuth, local
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »ENT
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »eye NEC
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »heavy metals NEC
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »local NEC
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »local NEC
    »specified NEC
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »mixed
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »ophthalmic preparation
T37.91T37.92T37.93T37.94T37.95T37.96
Anti-infective NEC
  »topical NEC
T37.91T37.92T37.93T37.94T37.95T37.96
Antiparasitic drug (systemic)T37.91T37.92T37.93T37.94T37.95T37.96
Antiparasitic drug (systemic)
  »local
T37.91T37.92T37.93T37.94T37.95T37.96
Antiparasitic drug (systemic)
  »specified NEC
T37.91T37.92T37.93T37.94T37.95T37.96
EthoxazeneT37.91T37.92T37.93T37.94T37.95T37.96
FuradantinT37.91T37.92T37.93T37.94T37.95T37.96
FuroxoneT37.91T37.92T37.93T37.94T37.95T37.96
NifuraldezoneT37.91T37.92T37.93T37.94T37.95T37.96
Serenium (hydrochloride)T37.91T37.92T37.93T37.94T37.95T37.96

Information for Patients


Medication Errors

Medicines treat infectious diseases, prevent problems from chronic diseases, and ease pain. But medicines can also cause harmful reactions if not used correctly. Errors can happen in the hospital, at the health care provider's office, at the pharmacy, or at home. You can help prevent errors by

Food and Drug Administration


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)