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  2. ICD-10-CM Index
  3. Chapter: Z00–Z99
  4. Section: Z77-Z99
  5. Block: Z79
  6. Z79.84 - Long term (current) use of oral hypoglycemic drugs

2022 ICD-10-CM Code Z79.84
Long term (current) use of oral hypoglycemic drugs

Version 2022
Billable Code
Unacceptable Principal Diagnosis
MS-DRG Mapping
POA Exempt
ICD-10:Z79.84
Short Description:Long term (current) use of oral hypoglycemic drugs
Long Description:Long term (current) use of oral hypoglycemic drugs
Status: Valid for Submission

Code Classification

  • Factors influencing health status and contact with health services (Z00–Z99)
    • Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)
      • Long term current drug therapy (Z79)

Z79.84 is a billable diagnosis code used to specify a medical diagnosis of long term (current) use of oral hypoglycemic drugs. The code Z79.84 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.

The ICD-10-CM code Z79.84 might also be used to specify conditions or terms like diabetic on insulin and oral treatment, diabetic on oral treatment or long-term current use of oral hypoglycemic medication. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

The code Z79.84 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.

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code Z79.84:


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

Entries in the Index to Diseases and Injuries with references to Z79.84

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code Z79.84 are found in the index:

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:

Approximate Synonyms

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

Present on Admission (POA)

Z79.84 is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here.

CMS POA Indicator Options and Definitions
POA Indicator CodePOA Reason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO

Replacement Code

Z7984 replaces the following previously assigned ICD-10 code(s):

Convert Z79.84 to ICD-9 Code

The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code Z79.84 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.

Information for Patients


Diabetes Medicines

What is diabetes?

Diabetes is a disease in which your blood glucose, or blood sugar, levels are too high. Glucose comes from the foods you eat. Insulin is a hormone that helps the glucose get into your cells to give them energy. If you have type 1 diabetes, your body does not make insulin. With type 2 diabetes, the more common type, your body does not make or use insulin well. Without enough insulin, too much glucose stays in your blood.

What are the treatments for diabetes?

Treatments for diabetes depend on the type. Common treatments include a diabetic meal plan, regular physical activity, and medicines. Some less common treatments are weight loss surgery for either type and an artificial pancreas or pancreatic islet transplantation for some people with type 1 diabetes.

Who needs diabetes medicines?

People with type 1 diabetes need to take insulin to control their blood sugar.

Some people with type 2 diabetes can control their blood sugar with healthy food choices and physical activity. But for others, a diabetic meal plan and physical activity are not enough. They need to take diabetes medicines.

The kind of medicine you take depends on your type of diabetes, daily schedule, medicine costs, and other health conditions.

What are the types of medicines for type 1 diabetes?

If you have type 1 diabetes, you must take insulin because your body no longer makes it. Different types of insulin start to work at different speeds, and the effects of each last a different length of time. You may need to use more than one type.

You can take insulin several different ways. The most common are with a needle and syringe, an insulin pen, or an insulin pump. If you use a needle and syringe or a pen, you have to take insulin several times during the day, including with meals. An insulin pump gives you small, steady doses throughout the day. Less common ways to take insulin include Inhalers, injection ports, and jet injectors.

In rare cases, taking insulin alone might not be enough to manage your blood sugar. Then you would need to take another diabetes medicine.

What are the types of medicines for type 2 diabetes?

There are several different medicines for type 2 diabetes. Each works in a different way. Many diabetes medicines are pills. There are also medicines that you inject under your skin, such as insulin.

Over time, you may need more than one diabetes medicine to manage your blood sugar. You might add another diabetes medicine or switch to a combination medicine. A combination medicine is a pill than contains more than one type of diabetes medicine. Some people with type 2 diabetes take both pills and insulin.

Even if you don't usually take insulin, you may need it at special times, such as during pregnancy or if you are in the hospital.

What else should I know about taking medicines for diabetes?

Even if you take medicines for diabetes, you still need to eat a healthy diet and do regular physical activity. These will help you manage your diabetes.

It is important to make sure that you understand your diabetes treatment plan. Talk to your provider about

You should not change or stop your diabetes medicines on your own. Talk to your provider first.

Some people who take diabetes medicines may need medicines for high blood pressure, high cholesterol, or other conditions. This may help you avoid or control any complications of diabetes.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


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Code History

  • 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

Previous Code: Z79.83

Parent Code: Z79.8

Next Code: Z79.89