2024 ICD-10-CM Diagnosis Code T49.5X3A

Poisoning by ophthalmological drugs and preparations, assault, initial encounter

ICD-10-CM Code:
T49.5X3A
ICD-10 Code for:
Poisoning by opth drugs and preparations, assault, init
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Not chronic
Code Navigator:

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    (S00–T88)
    • Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances
      (T36-T50)
      • Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
        (T49)

T49.5X3A is a billable diagnosis code used to specify a medical diagnosis of poisoning by ophthalmological drugs and preparations, assault, initial encounter. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

T49.5X3A is an initial encounter code, includes a 7th character and should be used while the patient is receiving active treatment for a condition like poisoning by ophthalmological drugs and preparations assault. According to ICD-10-CM Guidelines an "initial encounter" doesn't necessarily means "initial visit". The 7th character should be used when the patient is undergoing active treatment regardless if new or different providers saw the patient over the course of a treatment. The appropriate 7th character codes should also be used even if the patient delayed seeking treatment for a condition.

Clinical Classification

Clinical CategoryCCSR Category CodeInpatient Default CCSROutpatient Default CCSR
External cause codes: intent of injury, assaultEXT022N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis.N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis.
External cause codes: poisoning by drugEXT014N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis.N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis.
Poisoning by drugs, initial encounterINJ022Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

Clinical Information

  • Levobunolol

    the l-isomer of bunolol.
  • Metipranolol

    a beta-adrenergic antagonist effective for both beta-1 and beta-2 receptors. it is used as an antiarrhythmic, antihypertensive, and antiglaucoma agent.
  • Physostigmine

    a cholinesterase inhibitor that is rapidly absorbed through membranes. it can be applied topically to the conjunctiva. it also can cross the blood-brain barrier and is used when central nervous system effects are desired, as in the treatment of severe anticholinergic toxicity.

Coding Guidelines

When coding a poisoning or reaction to the improper use of a medication (e.g., overdose, wrong substance given or taken in error, wrong route of administration), first assign the appropriate code from categories T36-T50. The poisoning codes have an associated intent as their 5th or 6th character (accidental, intentional self-harm, assault and undetermined. If the intent of the poisoning is unknown or unspecified, code the intent as accidental intent. The undetermined intent is only for use if the documentation in the record specifies that the intent cannot be determined. Use additional code(s) for all manifestations of poisonings.

The appropriate 7th character is to be added to each code from block Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs (T49). Use the following options for the aplicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Convert T49.5X3A to ICD-9-CM

  • ICD-9-CM Code: 976.5 - Pois-eye anti-infec/drug
    Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
  • ICD-9-CM Code: E962.0 - Assault-pois w medic agt
    Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.

Table of Drugs and Chemicals

The parent code T49.5X3 of the current diagnosis code is referenced in the Table of Drugs and Chemicals, this table contains a classification of drugs, industrial solvents, corrosive gases, noxious plants, pesticides, and other toxic agents.

According to ICD-10-CM coding guidelines it is advised to do not code directly from the Table of Drugs and Chemicals, instead always refer back to the Tabular List when doing the initial coding. Each substance in the table is assigned a code according to the poisoning classification and external causes of adverse effects. It is important to use as many codes as necessary to specify all reported drugs, medicinal or chemical substances. If the same diagnosis code describes the causative agent for more than one adverse reaction, poisoning, toxic effect or underdosing, utilize the code only once.

Substance Poisoning
Accidental
(unintentional)
Poisoning
Accidental
(self-harm)
Poisoning
Assault
Poisoning
Undetermined
Adverse
effect
Underdosing
AmmoniumT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ammonium
  »acid tartrate
T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ammonium
  »bromide
T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ammonium
  »carbonate
T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ammonium
  »chloride
T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ammonium
  »chloride
    »expectorant
T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ammonium
  »compounds (household) NEC
T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ammonium
  »compounds (household) NEC
    »fumes (any usage)
T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ammonium
  »compounds (household) NEC
    »industrial
T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ammonium
  »ichthyosulronate
T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ammonium
  »mandelate
T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ammonium
  »sulfamate
T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ammonium
  »sulfonate resin
T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
BefunololT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
BibrocatholT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
ChloropticT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Contact lens solutionT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Cycloplegic drugT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Demecarium (bromide)T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
DendridT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
DipivefrineT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Echothiophate, echothiopate, ecothiopateT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Ecothiopate iodideT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
EdoxudineT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
EserineT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
EucatropineT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Eye agents (anti-infective)T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Eye drug NECT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
FluorphenylalanineT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
HerplexT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
HydroxyamphetamineT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
HypromelloseT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
LachesineT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
LevobunololT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Lubricant, eyeT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Methylparaben (ophthalmic)T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
MetipranololT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Miotic drugT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Mydriatic drugT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
PhospholineT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
PhysostigmineT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
Propylparaben (ophthalmic)T49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
StoxilT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
TetrahydrozolineT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
TetryzolineT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6
VisineT49.5X1T49.5X2T49.5X3T49.5X4T49.5X5T49.5X6

Patient Education


Poisoning

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.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.