T47.9
Non-billableUnsp agents primarily affecting the gastrointestinal system
Poisoning by, adverse effect of and underdosing of unspecified agents primarily affecting the gastrointestinal system
This is a header/category code. For billing purposes, use a more specific child code from the list below.
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)
Excludes 2
Conditions not included here, but the patient may have both
Code First
The underlying condition must be sequenced before this code
- , for adverse effects, the nature of the adverse effect, such as:
- •adverse effect NOST88.7
- •aspirin gastritisK29
- •blood disordersD56-D76
- •contact dermatitisL23-L25
- •dermatitis due to substances taken internallyL27
- •nephropathyN14.0-N14.2
Use Additional Code
Additional codes that should follow this code
Child Codes (6)
T47.91Poisoning by unsp agents aff the GI sys, accidental
T47.92Poisoning by unsp agents aff the GI sys, self-harm
T47.93Poisoning by unsp agents aff the GI sys, assault
T47.94Poisoning by unsp agents aff the GI sys, undetermined
T47.95Adverse effect of unsp agents primarily affecting the GI sys
T47.96Underdosing of unsp agents primarily affecting the GI sys
Related Codes(9)
T47.0Histamine H2-receptor blockers
T47.1Antacids and anti-gastric-secretion drugs
T47.2Stimulant laxatives
T47.3Saline and osmotic laxatives
T47.4Poisoning by, adverse effect of and underdosing of laxatives
T47.5Digestants
T47.6Antidiarrheal drugs
T47.7Poisoning by, adverse effect of and underdosing of emetics
T47.8Agents primarily affecting gastrointestinal system
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(2)
Frequently Asked Questions
What is the ICD-10 code for unsp agents primarily affecting the gastrointestinal system?
The ICD-10-CM code for unsp agents primarily affecting the gastrointestinal system is T47.9. The full clinical description is "Poisoning by, adverse effect of and underdosing of unspecified agents primarily affecting the gastrointestinal system". T47.9 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code T47.9 mean?
ICD-10-CM code T47.9 represents “Poisoning by, adverse effect of and underdosing of unspecified agents primarily affecting the gastrointestinal system”. It is classified under Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes and is a non-billable header code. Use a more specific child code for billing purposes.
Is T47.9 a billable code?
No, T47.9 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 T47.9.
What chapter is T47.9 in?
T47.9 is in Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (codes S00-T88).
What codes cannot be used with T47.9?
T47.9 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 T47.9?
T47.9 has 6 child codes, including: T47.91 (Poisoning by unsp agents aff the GI sys, accidental), T47.92 (Poisoning by unsp agents aff the GI sys, self-harm), T47.93 (Poisoning by unsp agents aff the GI sys, assault), T47.94 (Poisoning by unsp agents aff the GI sys, undetermined), and 2 more.
Are additional codes required with T47.9?
Yes, when using T47.9, also report: 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 T47.9?
T47.9 is linked to 1 UMLS Concept Unique Identifier: C2879889. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does T47.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like unsp agents primarily affecting the gastrointestinal system affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of T47.9?
T47.9 maps to the ICD-11 code: NE60 (Harmful effects of drugs, medicaments or biological substances, not elsewhere classified).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.