ICD-10 Code T49.4X6

Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations

Version 2019 Replaced Code Non-Billable Code Underdosing

Not Valid for Submission

T49.4X6 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations. The code is NOT valid for the year 2019 for the submission of HIPAA-covered transactions.

ICD-10: T49.4X6
Short Description:Underdosing of keratolyt/keratplst/hair trmt drug
Long Description:Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations

Consider the following ICD-10 codes with a higher level of specificity:

  • T49.4X6A - Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, initial encounter
  • T49.4X6D - Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, subsequent encounter
  • T49.4X6S - Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, sequela

Replaced Code

This code was replaced 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)
      • Topical skin/eye/ENT/dental drugs (T49)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (first year ICD-10-CM implemented into the HIPAA mandated code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019

Information for Medical Professionals

Diagnostic Related Groups

The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). The diagnosis code T49.4X6 is grouped in the following groups for version MS-DRG V36.0 applicable from 10/01/2018 through 09/30/2019.

  • 949 - AFTERCARE WITH CC/MCC
  • 949 - AFTERCARE WITH CC/MCC
  • 950 - AFTERCARE WITHOUT CC/MCC
  • 950 - AFTERCARE WITHOUT CC/MCC

Table of Drugs and Chemicals

The code T49.4X6 is included 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. Each substance in the table is assigned a code according to the poisoning classification and external causes of adverse effects. Use as many codes as necessary to describe all reported drugs, medicinal or chemical substances.

Substance Poisoning
Accidental
(unintentional)
Poisoning
Accidental
self-harm
Poisoning
Assault
Poisoning
Undetermined
Adverse
effect
Underdosing
AllantoinT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Alum (medicinal)T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Alum (medicinal)
  »nonmedicinal (ammonium) (potassium)
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
AnthralinT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
AntiseborrheicsT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Bleaching agent (medicinal)T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
ButantroneT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Cade oilT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
CapsicumT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Carbazochrome (salicylate) (sodium sulfonate)T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
ChlorothymolT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
ChloroxineT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
ChrysarobinT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
CollagenaseT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Corn curesT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
DepilatoryT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Desloughing agentT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Diachylon plasterT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Dimethylamine sulfateT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
DithranolT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
EuresolT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Flowers of sulfurT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Fumaric acidT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
HairT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Hair
  »dye
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Hair
  »preparation NEC
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
HemostypticT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
IchthyolT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Keratolytic drug NECT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Keratolytic drug NEC
  »anthracene
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Keratoplastic NECT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Lassar's pasteT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
MonobenzoneT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Podophyllum (resin)T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Preparation, localT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Pyrithione zincT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
RubefacientT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Salicylic acidT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Salicylic acid
  »with benzoic acid
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Salicylic acid
  »congeners
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Salicylic acid
  »derivative
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Salicylic acid
  »salts
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Savin (oil)T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
SelsunT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Sulfur, sulfurated, sulfuric, sulfurous, sulfuryl (compounds NEC) (medicinal)T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Sulfur, sulfurated, sulfuric, sulfurous, sulfuryl (compounds NEC) (medicinal)
  »acid
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Sulfur, sulfurated, sulfuric, sulfurous, sulfuryl (compounds NEC) (medicinal)
  »dioxide (gas)
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Sulfur, sulfurated, sulfuric, sulfurous, sulfuryl (compounds NEC) (medicinal)
  »ether
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Sulfur, sulfurated, sulfuric, sulfurous, sulfuryl (compounds NEC) (medicinal)
  »hydrogen
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Sulfur, sulfurated, sulfuric, sulfurous, sulfuryl (compounds NEC) (medicinal)
  »medicinal (keratolytic) (ointment) NEC
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Sulfur, sulfurated, sulfuric, sulfurous, sulfuryl (compounds NEC) (medicinal)
  »ointment
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Sulfur, sulfurated, sulfuric, sulfurous, sulfuryl (compounds NEC) (medicinal)
  »pesticide (vapor)
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Sulfur, sulfurated, sulfuric, sulfurous, sulfuryl (compounds NEC) (medicinal)
  »vapor NEC
T49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
ThioglycolateT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
TioxoloneT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
TriacetoxyanthraceneT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
TrioxysalenT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
Vleminckx's solutionT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6
XenysalateT49.4X1T49.4X2T49.4X3T49.4X4T49.4X5T49.4X6

Information for Patients


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

  • 6 Tips to Avoid Medication Mistakes (Food and Drug Administration)
  • How and when to get rid of unused medicines (Medical Encyclopedia)
  • Keeping your medications organized (Medical Encyclopedia)
  • Medication safety during your hospital stay (Medical Encyclopedia)
  • Medication safety: Filling your prescription (Medical Encyclopedia)
  • Storing your medicines (Medical Encyclopedia)
  • Taking medicine at home - create a routine (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.