T38.991D - Poisoning by other hormone antagonists, accidental (unintentional), subsequent encounter
ICD-10-CM Chapter 19: Injury, poisoning and certain other consequences of external causes · T36-T50 Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50) · Subcategory of T38.991 · FY2027
7th character D: subsequent encounter
Coding Guidance
7th character D: subsequent encounter.
Includes, Excludes and Coding Notes
Mutually exclusive: these conditions are never reported together with this code.
- mineralocorticoids and their antagonists (T50.0-)
- oxytocic hormones (T48.0-)
- parathyroid hormones and derivatives (T50.9-)
Conditions this code covers.
- 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
Mutually exclusive: these conditions are never reported together with this code.
- toxic reaction to local anesthesia in pregnancy (O29.3-)
Not part of this code; report both codes when the patient has both conditions.
- 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)
Add a secondary code to identify the associated condition or cause when it is documented.
- 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-)
Sequence the underlying condition before this code.
- , 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)
Instructional notes from the ICD-10-CM tabular list.
- 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.
Not part of this code; report both codes when the patient has both conditions.
- birth trauma (P10-P15)
- obstetric trauma (O70-O71)
Add a secondary code to identify the associated condition or cause when it is documented.
- code to identify any retained foreign body, if applicable (Z18.-)
Instructional notes from the ICD-10-CM tabular list.
- 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
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Codes at the same level as T38.991D