ICD-9 Code 304.31

Cannabis dependence, continuous

Not Valid for Submission

304.31 is a legacy non-billable code used to specify a medical diagnosis of cannabis dependence, continuous. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

ICD-9: 304.31
Short Description:Cannabis depend-contin
Long Description:Cannabis dependence, continuous

Convert 304.31 to ICD-10

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

  • F12.20 - Cannabis dependence, uncomplicated

Code Classification

  • Mental disorders (290–319)
    • Neurotic disorders, personality disorders, and other nonpsychotic mental disorders (300-316)
      • 304 Drug dependence

Information for Medical Professionals

Information for Patients


Marijuana

What is marijuana?

Marijuana is a green, brown, or gray mix of dried, crumbled parts from the marijuana plant. The plant contains chemicals which act on your brain and can change your mood or consciousness.

How do people use marijuana?

There are many different ways that people use marijuana, including:

  • Rolling it up and smoking it like a cigarette or cigar
  • Smoking it in a pipe
  • Mixing it in food and eating it
  • Brewing it as a tea
  • Smoking oils from the plant ("dabbing")
  • Using electronic vaporizers ("vaping")

What are the effects of marijuana?

Marijuana can cause both short-term and long-term effects.

Short term:

While you are high, you may experience:

  • Altered senses, such as seeing brighter colors
  • Altered sense of time, such as minutes seeming like hours
  • Changes in mood
  • Problems with body movement
  • Trouble with thinking, problem-solving, and memory
  • Increased appetite

Long term:

In the long term, marijuana can cause health problems, such as:

  • Problems with brain development. People who started using marijuana as teenagers may have trouble with thinking, memory, and learning.
  • Coughing and breathing problems, if you smoke marijuana frequently
  • Problems with child development during and after pregnancy, if a woman smokes marijuana while pregnant

Can you overdose on marijuana?

It is possible to overdose on marijuana, if you take a very high dose. Symptoms of an overdose include anxiety, panic, and a rapid heartbeat. In rare cases, an overdose can cause paranoia and hallucinations. There are no reports of people dying from using just marijuana.

Is marijuana addictive?

After using marijuana for a while, it is possible to get addicted to it. You are more likely to become addicted if you use marijuana every day or you started using it when you were a teenager. If you are addicted, you will have a strong need to take the drug. You may also need to smoke more and more of it to get the same high. When you try to quit, you may have mild withdrawal symptoms such as:

  • Irritability
  • Trouble sleeping
  • Decreased appetite
  • Anxiety
  • Cravings

What is medical marijuana?

The marijuana plant has chemicals that can help with some health problems. More states are making it legal to use the plant as medicine for certain medical conditions. But there isn't enough research to show that the whole plant works to treat or cure these conditions. The U.S. Food and Drug Administration (FDA) has not approved the marijuana plant as a medicine. Marijuana is still illegal at the national level.

However, there have been scientific studies of cannabinoids, the chemicals in marijuana. The two main cannabinoids that are of medical interest are THC and CBD. The FDA has approved two drugs that contain THC. These drugs treat nausea caused by chemotherapy and increase appetite in patients who have severe weight loss from AIDS. There is also a liquid drug that contains CBD. It treats two forms of severe childhood epilepsy. Scientists are doing more research with marijuana and its ingredients to treat many diseases and conditions.

NIH: National Institute on Drug Abuse


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ICD-9 Footnotes

General Equivalence Map Definitions
The ICD-9 and ICD-10 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.