T47.0X4A Poisoning by histamine H2-receptor blockers, undet, init
Instructional Notes:
T47.0X4A Description: Poisoning by histamine H2-receptor blockers, undet, init ↓
T47.0X4 Description: Poisoning by histamine H2-receptor blockers, undetermined ↓
T47.0X Description: Poisoning by, adverse effect of and underdosing of histamine H2-receptor blockers ↓
T47.0 Description: Poisoning by, adverse effect of and underdosing of histamine H2-receptor blockers ↓
T47 Description: Poisoning by, adverse effect of and underdosing of agents primarily affecting the gastrointestinal system ↓
T36-T50 Description: Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50) Exclude1:
toxic reaction to local anesthesia in pregnancy (O29.3-)
Exclude2:
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)
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)
Notes:
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.
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-)
Include:
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
↓
S00-T88 Description: Injury, poisoning and certain other consequences of external causes Exclude2:
birth trauma (P10-P15)
obstetric trauma (O70-O71)
Notes:
Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
Use Additional Code:
code to identify any retained foreign body, if applicable (Z18.-)