ICD-10 Code T43.014S

Poisoning by tricyclic antidepressants, undetermined, sequela

Version 2019 Replaced Code Billable Code POA Exempt
ICD-10: T43.014S
Short Description:Poisoning by tricyclic antidepress, undetermined, sequela
Long Description:Poisoning by tricyclic antidepressants, undetermined, sequela

Valid for Submission

ICD-10 T43.014S is a billable code used to specify a medical diagnosis of poisoning by tricyclic antidepressants, undetermined, sequela. The code is valid for the year 2019 for the submission of HIPAA-covered transactions.

Deleted Code

This code was deleted in the 2019 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2018. This code was replaced for the FY 2019 (October 1, 2018 - September 30, 2019).

  • K59.03 - Drug induced constipation

Code Classification

  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances (T36-T50)
      • Psychotropic drugs, not elsewhere classified (T43)

Information for Medical Professionals

Convert T43.014S to ICD-9

The following crosswalk between ICD-10 to ICD-9 is based based on the General Equivalence Mappings (GEMS) information:

  • 909.0 - Late eff drug poisoning (Combination Flag)
  • E989 - Late eff inj-undet circ (Combination Flag)

Present on Admission (POA)

T43.014S is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

CMS POA Indicator Options and Definitions
POA Indicator CodePOA Reason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO


The following clinical terms are approximate synonyms:

  • Amitriptyline overdose
  • Amitriptyline overdose of undetermined intent
  • Amitriptyline poisoning of undetermined intent
  • Amoxapine overdose
  • Amoxapine overdose of undetermined intent
  • Amoxapine poisoning
  • Amoxapine poisoning of undetermined intent
  • Butriptyline overdose
  • Butriptyline overdose of undetermined intent
  • Butriptyline poisoning
  • Butriptyline poisoning of undetermined intent
  • Clomipramine overdose
  • Clomipramine overdose of undetermined intent
  • Clomipramine poisoning
  • Clomipramine poisoning of undetermined intent
  • Desipramine overdose
  • Desipramine overdose of undetermined intent
  • Desipramine poisoning
  • Desipramine poisoning of undetermined intent
  • Dosulepin overdose
  • Dosulepin overdose of undetermined intent
  • Dosulepin poisoning
  • Dosulepin poisoning of undetermined intent
  • Doxepin overdose
  • Doxepin overdose of undetermined intent
  • Doxepin poisoning
  • Doxepin poisoning of undetermined intent
  • Imipramine overdose
  • Imipramine overdose of undetermined intent
  • Imipramine poisoning of undetermined intent
  • Iprindole overdose
  • Iprindole overdose of undetermined intent
  • Iprindole poisoning
  • Iprindole poisoning of undetermined intent
  • Lofepramine overdose
  • Lofepramine overdose of undetermined intent
  • Lofepramine poisoning
  • Lofepramine poisoning of undetermined intent
  • Nortriptyline overdose
  • Nortriptyline overdose of undetermined intent
  • Nortriptyline poisoning
  • Nortriptyline poisoning of undetermined intent
  • Poisoning by amitriptyline
  • Poisoning by imipramine
  • Protriptyline overdose
  • Protriptyline overdose of undetermined intent
  • Protriptyline poisoning
  • Protriptyline poisoning of undetermined intent
  • Tricyclic antidepressant overdose of undetermined intent
  • Tricyclic antidepressant poisoning of undetermined intent
  • Trimipramine overdose
  • Trimipramine overdose of undetermined intent
  • Trimipramine poisoning
  • Trimipramine poisoning of undetermined intent

Information for Patients


Also called: SSRIs, Selective serotonin reuptake inhibitors, Tricyclic antidepressants

Antidepressants are medicines that treat depression. Your doctor can prescribe them for you. They work to balance some of the natural chemicals in our brains. It may take several weeks for them to help. There are several types of antidepressants. You and your doctor may have to try a few before finding what works best for you.

Antidepressants may cause mild side effects that usually do not last long. These may include headache, nausea, sleep problems, restlessness, and sexual problems. Tell your doctor if you have any side effects. You should also let your doctor know if you take any other medicines, vitamins, or herbal supplements.

It is important to keep taking your medicines, even if you feel better. Do not stop taking your medicines without talking to your doctor. You often need to stop antidepressants gradually.

NIH: National Institute of Mental Health

  • Depression - stopping your medicines (Medical Encyclopedia)

[Learn More]


A poison is any substance that is harmful to your body. You might swallow it, inhale it, inject it, or absorb it through your skin. Any substance can be poisonous if too much is taken. Poisons can include

  • Prescription or over-the-counter medicines taken in doses that are too high
  • Overdoses of illegal drugs
  • Carbon monoxide from gas appliances
  • Household products, such as laundry powder or furniture polish
  • Pesticides
  • Indoor or outdoor plants
  • Metals such as lead and mercury

The effects of poisoning range from short-term illness to brain damage, coma, and death. To prevent poisoning it is important to use and store products exactly as their labels say. Keep dangerous products where children can't get to them. Treatment for poisoning depends on the type of poison. If you suspect someone has been poisoned, call your local poison control center at 1-800-222-1222 right away.

  • Poisoning (Medical Encyclopedia)
  • Poisoning first aid (Medical Encyclopedia)
  • Toxicology screen (Medical Encyclopedia)

[Learn More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.