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T42.7

Non-billable

Unsp antiepileptic and sedative-hypnotic drugs

Poisoning by, adverse effect of and underdosing of unspecified antiepileptic and sedative-hypnotic drugs

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

T36-T50

Parent Code

T42

Child Codes

6

Coding Notes

Includes

Conditions included under this code

  • 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

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • birth trauma (P10-P15)
  • obstetric trauma (O70-O71)
  • toxic reaction to local anesthesia in pregnancy (O29.3-)

Excludes 2

Conditions not included here, but the patient may have both

  • 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)
  • drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.--F19.-)

Code First

The underlying condition must be sequenced 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)

Use Additional Code

Additional codes that should follow this code

  • code to identify any retained foreign body, if applicable (Z18.-)
  • 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-)

Child Codes (6)

T42.71

Poisoning by unsp antieplptc and sed-hypntc drugs, acc

T42.72

Poisoning by unsp antieplptc and sed-hypntc drugs, self-harm

T42.73

Poisoning by unsp antieplptc and sed-hypntc drugs, assault

T42.74

Poisoning by unsp antieplptc and sed-hypntc drugs, undet

T42.75

Adverse effect of unsp antiepileptic and sed-hypntc drugs

T42.76

Underdosing of unsp antiepileptic and sed-hypntc drugs

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code T42.7?

ICD-10-CM code T42.7 represents "Poisoning by, adverse effect of and underdosing of unspecified antiepileptic and sedative-hypnotic drugs". It is a non-billable header code — use a more specific child code for billing purposes.

Is T42.7 a billable code?

No, T42.7 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 6 child codes under T42.7.

What chapter is T42.7 in?

T42.7 is in Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (codes S00-T88).

What codes cannot be used with T42.7?

T42.7 has Excludes1 notes indicating codes that cannot be used together with it, including: birth trauma (P10-P15); obstetric trauma (O70-O71); toxic reaction to local anesthesia in pregnancy (O29.3-).

What are the subcategories under T42.7?

T42.7 has 6 child codes, including: T42.71 (Poisoning by unsp antieplptc and sed-hypntc drugs, acc), T42.72 (Poisoning by unsp antieplptc and sed-hypntc drugs, self-harm), T42.73 (Poisoning by unsp antieplptc and sed-hypntc drugs, assault), T42.74 (Poisoning by unsp antieplptc and sed-hypntc drugs, undet), and 2 more.

Are additional codes required with T42.7?

Yes, when using T42.7 you should also code: code to identify any retained foreign body, if applicable (Z18.-); 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-).

What are the UMLS CUIs for T42.7?

T42.7 is linked to 1 UMLS Concept Unique Identifier: C2878219. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.