ICD-10-CM › S00-T88 › T36-T50 › T40.4X4 Poisoning by other synthetic... › T40.4X4A
Poisoning by other synthetic narcotics, undetermined, initial encounter
RetiredICD-10-CM diagnosis code.
No longer in the code set. Submitting it will not be accepted for a current date of service.
Use instead:
What has happened to this code
Every change the publisher made, from 2007 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.
- FY2007 Added to the draft code set draft Poisoning by other synthetic narcotics, undetermined, initial encounter
- FY2021 Removed from the code set
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 T40 Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens]
Seventh character required
- The appropriate 7th character is to be added to each code from category T40
Excludes2 - not included here
- drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.-F19.-)
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.
Codes in the same group
| Code | Description | Status |
|---|---|---|
| T40.4X4D | Poisoning by other synthetic narcotics, undetermined, subsequent encounter | Retired |
| T40.4X4S | Poisoning by other synthetic narcotics, undetermined, sequela | Retired |