2024 ICD-10-CM Diagnosis Code T37.0X6A

Underdosing of sulfonamides, initial encounter

ICD-10-CM Code:
T37.0X6A
ICD-10 Code for:
Underdosing of sulfonamides, initial encounter
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)

T37.0X6A is a billable diagnosis code used to specify a medical diagnosis of underdosing of sulfonamides, 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.

This code describes a circumstance which influences the patient's health status but not a current illness or injury. The code is unacceptable as a principal diagnosis.

T37.0X6A is an initial encounter code, includes a 7th character and should be used while the patient is receiving active treatment for a condition like underdosing of sulfonamides. 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 Information

  • Acedapsone

    acetylated sulfone that is slowly metabolized to give long-term, low blood levels of dapsone. it has antimicrobial and antimalarial action, but is mainly used as a depot leprostatic agent.
  • Sulfachlorpyridazine

    a sulfonamide antimicrobial used for urinary tract infections and in veterinary medicine.
  • Silver Sulfadiazine

    antibacterial used topically in burn therapy.
  • Sulfadiazine

    one of the short-acting sulfonamides used in combination with pyrimethamine to treat toxoplasmosis in patients with acquired immunodeficiency syndrome and in newborns with congenital infections.
  • Sulfadimethoxine

    a sulfanilamide that is used as an anti-infective agent.
  • Sulfadoxine

    a long acting sulfonamide that is used, usually in combination with other drugs, for respiratory, urinary tract, and malarial infections.
  • Sulfaguanidine

    a sulfanilamide antimicrobial agent that is used to treat enteric infections.
  • Sulfalene

    long-acting plasma-bound sulfonamide used for respiratory and urinary tract infections and also for malaria.
  • Sulfamerazine

    a sulfanilamide that is used as an antibacterial agent.
  • Sulfameter

    long acting sulfonamide used in leprosy, urinary, and respiratory tract infections.
  • Sulfamethazine

    a sulfanilamide anti-infective agent. it has a spectrum of antimicrobial action similar to other sulfonamides.
  • Sulfamethizole

    a sulfathiazole antibacterial agent.
  • Sulfamethoxazole

    a bacteriostatic antibacterial agent that interferes with folic acid synthesis in susceptible bacteria. its broad spectrum of activity has been limited by the development of resistance. (from martindale, the extra pharmacopoeia, 30th ed, p208)
  • 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.
  • Sulfamethoxypyridazine

    a sulfanilamide antibacterial agent.
  • Sulfamonomethoxine

    long acting sulfonamide antibacterial agent.
  • Sulfamoxole

    a sulfanilamide antibacterial agent.
  • Sulfanilamide

    a short-acting sulfonamide used as an anti-infective agent. it has lower anti-bacterial activity than sulfamethoxazole.
  • Sulfanilamides

    compounds based on 4-aminobenzenesulfonamide. the '-anil-' part of the name refers to aniline.
  • Sulfaphenazole

    a sulfonilamide anti-infective agent.
  • Sulfapyridine

    antibacterial, potentially toxic, used to treat certain skin diseases.
  • Sulfasalazine

    a drug that is used in the management of inflammatory bowel diseases. its activity is generally considered to lie in its metabolic breakdown product, 5-aminosalicylic acid (see mesalamine) released in the colon. (from martindale, the extra pharmacopoeia, 30th ed, p907)
  • Sulfathiazole

    a sulfathiazole compound that is used as a short-acting anti-infective agent. it is no longer commonly used systemically due to its toxicity, but may still be applied topically in combination with other drugs for the treatment of vaginal and skin infections, and is still used in veterinary medicine.
  • Sulfathiazoles

    sulfanilamides consisting of a 4-aminobenzenesulfonamido group at the 2-position of 1,3-thiazole. they are often used as anti-infective agents.
  • Sulfisomidine

    a sulfanilamide antibacterial agent.
  • Sulfisoxazole

    a short-acting sulfonamide antibacterial with activity against a wide range of gram- negative and gram-positive organisms.

Coding Guidelines

Underdosing refers to taking less of a medication than is prescribed by a provider or a manufacturer's instruction. Codes for underdosing should never be assigned as principal or first-listed codes. If a patient has a relapse or exacerbation of the medical condition for which the drug is prescribed because of the reduction in dose, then the medical condition itself should be coded.

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

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10-CM Code Edits are applicable to this code:

  • Unacceptable principal diagnosis - There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Convert T37.0X6A to ICD-9-CM

  • ICD-9-CM Code: -
    No Map Flag -

Table of Drugs and Chemicals

The parent code T37.0X6 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
AcedapsoneT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
AcesulfamethoxypyridazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
AcetylsulfamethoxypyridazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
AzosulfamideT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
AzulfidineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
DiaphenylsulfoneT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
DisulfanilamideT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
NeoprontosilT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
PhthalylsulfathiazoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
ProntosilT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SalazosulfapyridineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SalicylazosulfapyridineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SuccinylsulfathiazoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfachlorpyridazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfacitineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
Sulfadiasulfone sodiumT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfadiazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
Sulfadiazine
  »silver (topical)
T37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfadimethoxineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfadimidineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfadoxineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
Sulfadoxine
  »with pyrimethamine
T37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfaethidoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfafurazoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfaguanidineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfaleneT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfaloxateT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
Sulfaloxic acidT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfamerazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfameterT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfamethazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfamethizoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfamethoxazoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
Sulfamethoxazole
  »with trimethoprim
T37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfamethoxydiazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfamethoxypyridazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfamethylthiazoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfametoxydiazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfamonomethoxineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfamoxoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfanilamideT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfanilylguanidineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfaperinT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfaphenazoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfaphenylthiazoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfaproxylineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfapyridineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfapyrimidineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfasalazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfasuxidineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfasymazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfathiazoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfisomidineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulfisoxazoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
Sulfisoxazole
  »ophthalmic preparation
T37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
Sulfonamide NECT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
Sulfonamide NEC
  »eye
T37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulphadiazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulphadimethoxineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulphadimidineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulphafurazoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulphamethizoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulphamethoxazoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulphaphenazoleT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulphapyridineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
SulphasalazineT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6
TrisulfapyrimidinesT37.0X1T37.0X2T37.0X3T37.0X4T37.0X5T37.0X6

Patient Education


Medication Errors

Medicines treat infectious diseases, prevent problems from chronic diseases, and ease pain. But medicines can also cause harmful reactions if not used correctly. Errors can happen in the hospital, at the health care provider's office, at the pharmacy, or at home. You can help prevent errors by:

  • Knowing your medicines. When you get a prescription, ask the name of the medicine and check to make sure that the pharmacy gave you the right medicine. Make sure that you understand how often you should take the medicine and how long you should take it.
  • Keeping a list of medicines.
    • Write down all of the medicines that you are taking, including the names of your medicines, how much you take, and when you take them. Make sure to include any over-the-counter medicines, vitamins, supplements, and herbs that you take.
    • List the medicines that you are allergic to or that have caused you problems in the past.
    • Take this list with you every time you see a health care provider.
  • Reading medicine labels and following the directions. Don't just rely on your memory - read the medication label every time. Be especially careful when giving medicines to children.
  • Asking questions. If you don't know the answers to these questions, ask your health care provider or pharmacist:
    • Why am I taking this medicine?
    • What are the common side effects?
    • What should I do if I have side effects?
    • When should I stop this medicine?
    • Can I take this medicine with the other medicines and supplements on my list?
    • Do I need to avoid certain foods or alcohol while taking this medicine?

Food and Drug Administration


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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.