2024 ICD-10-CM Diagnosis Code T37.8X4A

Poisoning by other specified systemic anti-infectives and antiparasitics, undetermined, initial encounter

ICD-10-CM Code:
T37.8X4A
ICD-10 Code for:
Poisoning by oth systemic anti-infect/parasit, undet, 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 other systemic anti-infectives and antiparasitics
        (T37)

T37.8X4A is a billable diagnosis code used to specify a medical diagnosis of poisoning by other specified systemic anti-infectives and antiparasitics, undetermined, 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.

T37.8X4A 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 other specified systemic anti-infectives and antiparasitics undetermined. 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, undeterminedEXT023N - 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

  • Bithionol

    halogenated anti-infective agent that is used against trematode and cestode infestations.
  • Cinoxacin

    synthetic antimicrobial related to oxolinic acid and nalidixic acid and used in urinary tract infections.
  • Clioquinol

    a potentially neurotoxic 8-hydroxyquinoline derivative long used as a topical anti-infective, intestinal antiamebic, and vaginal trichomonacide. the oral preparation has been shown to cause subacute myelo-optic neuropathy and has been banned worldwide.
  • Fluconazole

    triazole antifungal agent that is used to treat oropharyngeal candidiasis and cryptococcal meningitis in aids.
  • Flucytosine

    a fluorinated cytosine analog that is used as an antifungal agent.
  • Furazolidone

    a nitrofuran derivative with antiprotozoal and antibacterial activity. furazolidone acts by gradual inhibition of monoamine oxidase. (from martindale, the extra pharmacopoeia, 30th ed, p514)
  • Hexetidine

    a bactericidal and fungicidal antiseptic. it is used as a 0.1% mouthwash for local infections and oral hygiene. (from martindale, the extra pharmacopoeia, 30th ed, p797)
  • Hydroxychloroquine

    a chemotherapeutic agent that acts against erythrocytic forms of malarial parasites. hydroxychloroquine appears to concentrate in food vacuoles of affected protozoa. it inhibits plasmodial heme polymerase. (from gilman et al., goodman and gilman's the pharmacological basis of therapeutics, 9th ed, p970)
  • Iodoquinol

    one of the halogenated 8-quinolinols widely used as an intestinal antiseptic, especially as an antiamebic agent. it is also used topically in other infections and may cause cns and eye damage. it is known by very many similar trade names world-wide.
  • Itraconazole

    a triazole antifungal agent that inhibits cytochrome p-450-dependent enzymes required for ergosterol synthesis.
  • Diatrizoate Meglumine

    a versatile contrast medium used for diagnostic x-ray radiology.
  • Iothalamate Meglumine

    a radiopaque medium used for urography, angiography, venography, and myelography. it is highly viscous and binds to plasma proteins.
  • Ioxaglic Acid

    a low-osmolar, ionic contrast medium used in various radiographic procedures.
  • Meglumine

    1-deoxy-1-(methylamino)-d-glucitol. a derivative of sorbitol in which the hydroxyl group in position 1 is replaced by a methylamino group. often used in conjunction with iodinated organic compounds as contrast medium.
  • Meglumine Antimoniate

    antimony salt of meglumine that is used in the treatment of leishmaniasis.
  • Metronidazole

    a nitroimidazole used to treat amebiasis; vaginitis; trichomonas infections; giardiasis; anaerobic bacteria; and treponemal infections.
  • Nalidixic Acid

    a synthetic 1,8-naphthyridine antimicrobial agent with a limited bacteriocidal spectrum. it is an inhibitor of the a subunit of bacterial dna gyrase.
  • Nifuratel

    local antiprotozoal and antifungal agent that may also be given orally.
  • Nitrofurantoin

    a urinary anti-infective agent effective against most gram-positive and gram-negative organisms. although sulfonamides and antibiotics are usually the agents of choice for urinary tract infections, nitrofurantoin is widely used for prophylaxis and long-term suppression.
  • Oxolinic Acid

    synthetic antimicrobial related to nalidixic acid and used in urinary tract infections.
  • Pefloxacin

    a synthetic broad-spectrum fluoroquinolone antibacterial agent active against most gram-negative and gram-positive bacteria.
  • Pipemidic Acid

    antimicrobial against gram negative and some gram positive bacteria. it is protein bound and concentrated in bile and urine and used for gastrointestinal, biliary, and urinary infections.
  • Piromidic Acid

    antibacterial against mainly gram negative organisms. it is used for urinary tract and intestinal infections.
  • Trimethoprim

    a pyrimidine inhibitor of dihydrofolate reductase, it is an antibacterial related to pyrimethamine. it is potentiated by sulfonamides and the trimethoprim, sulfamethoxazole drug combination is the form most often used. it is sometimes used alone as an antimalarial. trimethoprim resistance has been reported.
  • Trimethoprim Resistance

    nonsusceptibility of bacteria to the action of trimethoprim.
  • Trimethoprim, Sulfamethoxazole Drug Combination

    a drug combination with broad-spectrum antibacterial activity against both gram-positive and gram-negative organisms. it is effective in the treatment of many infections, including pneumocystis pneumonia in aids.

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 other systemic anti-infectives and antiparasitics (T37). Use the following options for the aplicable episode of care:

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

Convert T37.8X4A to ICD-9-CM

  • ICD-9-CM Code: 961.9 - Pois-anti-infect NEC/NOS
    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: E980.4 - Undet pois-med agnt NEC
    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 T37.8X4 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
AkritoinT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Arsphenamine (silver)T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
BismarsenT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
BithionolT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Bithionol
  »anthelminthic
T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
BroxyquinolineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
ChiniofonT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
CinoxacinT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
ClioquinolT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
CroconazoleT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
DichlorhydroxyquinolineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
DiiodohydroxyquinT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Diiodohydroxyquin
  »topical
T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
DiiodohydroxyquinolineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
DiodoquinT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
FloraquinT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
FluconazoleT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
FlucytosineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
FlumequineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
FlunidazoleT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
FluorocytosineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
FurazolidoneT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Hexamine (mandelate)T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
HexetidineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
HydroxychloroquineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Hydroxyquinoline (derivatives) NECT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
IodobismitolT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
IodochlorhydroxyquinT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Iodochlorhydroxyquin
  »topical
T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
IodochlorhydroxyquinolineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
IodoquinolT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
ItraconazoleT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Mandelic acidT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
MapharsenT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
MeglumineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Meglumine
  »antimoniate
T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Meglumine
  »diatrizoate
T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Meglumine
  »iodipamide
T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Meglumine
  »iotroxate
T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Methenamine (mandelate)T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
MetronidazoleT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Nalidixic acidT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NeoarsphenamineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NeosalvarsanT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NeosilversalvarsanT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NifuratelT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NifurtoinolT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NitrofurantoinT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
NitroxolineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Oxolinic acidT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Oxyquinoline (derivatives)T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
PefloxacinT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Pipemidic acidT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Piromidic acidT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
QuiniobineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Quinoline (derivatives) NECT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
RosoxacinT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Salvarsan 606 (neosilver) (silver)T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
StovarsalT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
SulfarsphenamineT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Tartar emeticT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Tartrated antimony (anti-infective)T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
ThiobismolT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
ThiocarbarsoneT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
TrimethoprimT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Trimethoprim
  »with sulfamethoxazole
T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Urinary anti-infectiveT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
VioformT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
Vioform
  »topical
T37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6
XibornolT37.8X1T37.8X2T37.8X3T37.8X4T37.8X5T37.8X6

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.