ICD-10-CM › S00-T88 › T36-T50 › T50.3X Poisoning by, adverse effect of... › T50.3X4

T50.3X4

Poisoning by electrolytic, caloric and water-balance agents, undetermined

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

  • T50.3X4A Poisoning by electrolytic, caloric and water-balance agents, undetermined, initial encounter
  • T50.3X4D Poisoning by electrolytic, caloric and water-balance agents, undetermined, subsequent encounter
  • T50.3X4S Poisoning by electrolytic, caloric and water-balance agents, undetermined, sequela

This code requires a seventh character. See the rule below.

What has happened to this code

Every change the publisher made, from 2014 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2014 Added to the draft code set draft Poisoning by electrolytic, caloric and water-balance agents, undetermined

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from T50 Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances

Seventh character required

  • The appropriate 7th character is to be added to each code from category T50

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

Excludes1 - never coded here

  • toxic reaction to local anesthesia in pregnancy (O29.3-)

Excludes2 - not included here

  • abuse and dependence of psychoactive substances (F10-F19)
  • abuse of non-dependence-producing substances (F55.-)
  • immunodeficiency due to drugs (D84.821)
  • drug reaction and poisoning affecting newborn (P00-P96)
  • pathological drug intoxication (inebriation) (F10-F19)

Use additional code

  • code(s) to specify:
  • manifestations of poisoning
  • underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9)
  • underdosing of medication regimen (Z91.12-, Z91.13-)

Code first

  • , for adverse effects, the nature of the adverse effect, such as:
  • adverse effect NOS (T88.7)
  • aspirin gastritis (K29.-)
  • blood disorders (D56-D76)
  • contact dermatitis (L23-L25)
  • dermatitis due to substances taken internally (L27.-)
  • nephropathy (N14.0-N14.2)

Includes

  • adverse effect of correct substance properly administered
  • poisoning by overdose of substance
  • poisoning by wrong substance given or taken in error
  • underdosing by (inadvertently) (deliberately) taking less substance than prescribed or instructed

Note

  • The drug giving rise to the adverse effect should be identified by use of codes from categories T36-T50 with fifth or sixth character 5.

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Showing 40 of 59 index phrases.

Codes in the same group

CodeDescriptionStatus
T50.3X1 Poisoning by electrolytic, caloric and water-balance agents, accidental (unintentional) Not billable
T50.3X2 Poisoning by electrolytic, caloric and water-balance agents, intentional self-harm Not billable
T50.3X3 Poisoning by electrolytic, caloric and water-balance agents, assault Not billable
T50.3X5 Adverse effect of electrolytic, caloric and water-balance agents Not billable
T50.3X6 Underdosing of electrolytic, caloric and water-balance agents Not billable