ICD-10 Code T40.7X5A

Adverse effect of cannabis (derivatives), initial encounter

Version 2019 Replaced Code Billable Code Unacceptable Principal Diagnosis
ICD-10:T40.7X5A
Short Description:Adverse effect of cannabis (derivatives), initial encounter
Long Description:Adverse effect of cannabis (derivatives), initial encounter

Valid for Submission

ICD-10 T40.7X5A is a billable code used to specify a medical diagnosis of adverse effect of cannabis (derivatives), initial encounter. 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)
      • Narcotics and psychodysleptics (T40)

Information for Medical Professionals

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 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 T40.7X5A to ICD-9

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

  • 995.29 - Adv eff med/biol NEC/NOS (Combination Flag)
  • E939.6 - Adv eff hallucinogens (Combination Flag)

Synonyms

The following clinical terms are approximate synonyms:

  • Adverse reaction to cannabis
  • Adverse reaction to hallucinogen
  • Antiemetic adverse reaction
  • Nabilone adverse reaction

Information for Patients


Marijuana

Also called: Cannabis, Ganja, Grass, Hash, Pot, Weed

Marijuana is a green, brown, or gray mix of dried, crumbled parts from the marijuana plant. It can be rolled up and smoked like a cigarette or cigar or smoked in a pipe. Sometimes people mix it in food or inhale it using a vaporizer.

Marijuana can cause problems with memory, learning, and behavior. Smoking it can cause some of the same coughing and breathing problems as smoking cigarettes. Some people get addicted to marijuana after using it for a while. It is more likely to happen if they use marijuana every day, or started using it when they were teenagers.

Some states have approved "medical marijuana" to ease symptoms of various health problems. The U.S. Food and Drug Administration (FDA) has not approved the marijuana plant as a medicine. However, there have been scientific studies of cannabinoids, the chemicals in marijuana. This has led to two FDA-approved medicines. They contain THC, the active ingredient in marijuana. They treat nausea caused by chemotherapy and increase appetite in patients who have severe weight loss from HIV/AIDS. Scientists are doing more research with marijuana and its ingredients to treat many diseases and conditions.

NIH: National Institute on Drug Abuse

  • Marijuana intoxication (Medical Encyclopedia)
  • Medical marijuana (Medical Encyclopedia)
  • Substance use -- marijuana (Medical Encyclopedia)
  • Tips for Teens: The Truth about Marijuana (National Clearinghouse for Alcohol and Drug Information)

[Read 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.