2024 ICD-10-CM Diagnosis Code K31.84


ICD-10-CM Code:
Short Description:
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Code Navigator:

Code Classification

  • Diseases of the digestive system
    • Diseases of esophagus, stomach and duodenum
      • Other diseases of stomach and duodenum

K31.84 is a billable diagnosis code used to specify a medical diagnosis of gastroparesis. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Abnormal gastric motility
  • Abnormal gastric motility
  • Abnormal gastric motility
  • Delayed gastric emptying
  • Delayed gastric emptying following procedure
  • Dysmotility of stomach
  • Dysmotility of stomach
  • Dysmotility of stomach
  • Gastric motor function disorder
  • Gastroparesis syndrome
  • Idiopathic gastroparesis
  • Nondiabetic gastroparesis

Clinical Classification

Clinical Category:
Other specified and unspecified disorders of stomach and duodenum
CCSR Category Code:
Inpatient Default CCSR:
Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.
Outpatient Default CCSR:
Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

Clinical Information

  • Gastroparesis - chronic delayed gastric emptying. gastroparesis may be caused by motor dysfunction or paralysis of stomach muscles or may be associated with other systemic diseases such as diabetes mellitus.
  • Gastroparesis - paralysis of the muscles of the stomach wall resulting in delayed emptying of the gastric contents into the small intestine.
  • Gastroparesis, CTCAE|Gastroparesis|Gastroparesis - a disorder characterized by an incomplete paralysis of the muscles of the stomach wall resulting in delayed emptying of the gastric contents into the small intestine.
  • Grade 1 Gastroparesis, CTCAE|Grade 1 Gastroparesis - mild nausea, early satiety and bloating, able to maintain caloric intake on regular diet
  • Grade 2 Gastroparesis, CTCAE|Grade 2 Gastroparesis - moderate symptoms; able to maintain nutrition with dietary and lifestyle modifications; may need pharmacologic intervention
  • Grade 3 Gastroparesis, CTCAE|Grade 3 Gastroparesis - weight loss >=20% from baseline; tube feeding or tpn indicated; elective operative intervention indicated
  • Grade 4 Gastroparesis, CTCAE|Grade 4 Gastroparesis - life-threatening consequences; urgent intervention indicated

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert K31.84 to ICD-9-CM

  • ICD-9-CM Code: 536.3 - Gastroparesis
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education

Stomach Disorders

Your stomach is an organ between your esophagus and small intestine. It is where digestion of protein begins. The stomach has three tasks. It stores swallowed food. It mixes the food with stomach acids. Then it sends the mixture on to the small intestine.

Most people have a problem with their stomach at one time or another. Indigestion and heartburn are common problems. You can relieve some stomach problems with over-the-counter medicines and lifestyle changes, such as avoiding fatty foods or eating more slowly. Other problems like peptic ulcers or GERD require medical attention.

You should see a doctor if you have any of the following:

  • Blood when you have a bowel movement
  • Severe abdominal pain
  • Heartburn not relieved by antacids
  • Unintended weight loss
  • Ongoing vomiting or diarrhea

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

[Learn More in MedlinePlus]


Describes gastroparesis, also called delayed gastric emptying, its complications, symptoms, causes, diagnosis, and treatment.
[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.


[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.