T49.95XA Adverse effect of unspecified topical agent, init encntr

Instructional Notes:

T49.95XA
Description: Adverse effect of unspecified topical agent, init encntr
↓
T49.95
Description: Adverse effect of unspecified topical agent
↓
T49.9
Description: Poisoning by, adverse effect of and underdosing of unspecified topical agent
↓
T49
Description: Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
Include:
- poisoning by, adverse effect of and underdosing of glucocorticoids, topically used
↓
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.-)