Valid for Submission
I12.9 is a billable diagnosis code used to specify a medical diagnosis of hypertensive chronic kidney disease with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease. The code I12.9 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code I12.9 might also be used to specify conditions or terms like arteriolar nephrosclerosis, benign arteriolar nephrosclerosis, benign hypertensive renal disease, benign hypertensive renal disease with renal failure, chronic hypertensive uremia , chronic kidney disease due to benign hypertension, etc.
Unspecified diagnosis codes like I12.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
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 I12.9:
Inclusion TermsInclusion 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.
- Hypertensive chronic kidney disease NOS
- Hypertensive renal disease NOS
Use Additional CodeUse Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
Index to Diseases and Injuries
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 I12.9 are found in the index:
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Arteriolar nephrosclerosis
- Benign arteriolar nephrosclerosis
- Benign hypertensive renal disease
- Benign hypertensive renal disease with renal failure
- Chronic hypertensive uremia
- Chronic kidney disease due to benign hypertension
- Chronic kidney disease due to hypertension
- Chronic kidney disease stage 1
- Chronic kidney disease stage 1 due to benign hypertension
- Chronic kidney disease stage 1 due to hypertension
- Chronic kidney disease stage 2
- Chronic kidney disease stage 2 due to benign hypertension
- Chronic kidney disease stage 2 due to hypertension
- Chronic kidney disease stage 3 due to benign hypertension
- Chronic kidney disease stage 3 due to hypertension
- Chronic kidney disease stage 4
- Chronic kidney disease stage 4 due to benign hypertension
- Chronic kidney disease stage 4 due to hypertension
- Hypertension secondary to renal disease complicating AND/OR reason for care during puerperium
- Hypertension secondary to renal disease in obstetric context
- Hypertensive heart AND renal disease in obstetric context
- Hypertensive heart disease in obstetric context
- Hypertensive nephrosclerosis
- Hypertensive renal disease
- Hypertensive renal disease complicating AND/OR reason for care during childbirth
- Hypertensive renal disease complicating AND/OR reason for care during pregnancy
- Hypertensive renal disease complicating AND/OR reason for care during puerperium
- Hypertensive renal disease in obstetric context
- Malignant arteriolar nephrosclerosis
- Malignant hypertensive chronic kidney disease
- Malignant hypertensive chronic kidney disease stage 1
- Malignant hypertensive chronic kidney disease stage 2
- Malignant hypertensive chronic kidney disease stage 3
- Malignant hypertensive chronic kidney disease stage 4
- Malignant hypertensive renal disease
- Parenchymal renal hypertension
- Pre-existing hypertensive chronic kidney disease in mother complicating pregnancy
- Renal hypertension
- Renal hypertension complicating pregnancy, childbirth and the puerperium
- Renal hypertension complicating pregnancy, childbirth and the puerperium - delivered with postnatal complication
- Renal hypertension complicating pregnancy, childbirth and the puerperium - not delivered
- Renal sclerosis with hypertension
Diagnostic Related Groups - MS-DRG Mapping
|MS-DRG||MS-DRG Title||MCD||Relative Weight|
|682||RENAL FAILURE WITH MCC||11||1.4702|
|683||RENAL FAILURE WITH CC||11||0.8781|
|684||RENAL FAILURE WITHOUT CC/MCC||11||0.6075|
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.
Convert I12.9 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code I12.9 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
Chronic Kidney Disease
Also called: CKD
You have two kidneys, each about the size of your fist. Their main job is to filter your blood. They remove wastes and extra water, which become urine. They also keep the body's chemicals balanced, help control blood pressure, and make hormones.
Chronic kidney disease (CKD) means that your kidneys are damaged and can't filter blood as they should. This damage can cause wastes to build up in your body. It can also cause other problems that can harm your health. Diabetes and high blood pressure are the most common causes of CKD.
The kidney damage occurs slowly over many years. Many people don't have any symptoms until their kidney disease is very advanced. Blood and urine tests are the only way to know if you have kidney disease.
Treatments cannot cure kidney disease, but they may slow kidney disease. They include medicines to lower blood pressure, control blood sugar, and lower cholesterol. CKD may still get worse over time. Sometimes it can lead to kidney failure. If your kidneys fail, you will need dialysis or a kidney transplantation.
You can take steps to keep your kidneys healthier longer:
- Choose foods with less salt (sodium)
- Control your blood pressure; your health care provider can tell you what your blood pressure should be
- Keep your blood sugar in the target range, if you have diabetes
- Limit the amount of alcohol you drink
- Choose foods that are healthy for your heart: fruits, vegetables, whole grains, and low-fat dairy foods
- Lose weight if you are overweight
- Be physically active
- Don't smoke
NIH: National Institute of Diabetes and Digestive and Kidney Diseases
- ACE inhibitors (Medical Encyclopedia)
- Chronic kidney disease (Medical Encyclopedia)
- High Blood Pressure (American Kidney Fund)
[Learn More in MedlinePlus]
High Blood Pressure
Also called: Benign essential hypertension, Essential hypertension, HBP, HTN, Hypertension
What is blood pressure?
Blood pressure is the force of your blood pushing against the walls of your arteries. Each time your heart beats, it pumps blood into the arteries. Your blood pressure is highest when your heart beats, pumping the blood. This is called systolic pressure. When your heart is at rest, between beats, your blood pressure falls. This is called diastolic pressure.
Your blood pressure reading uses these two numbers. Usually the systolic number comes before or above the diastolic number. For example, 120/80 means a systolic of 120 and a diastolic of 80.
How is high blood pressure diagnosed?
High blood pressure usually has no symptoms. So the only way to find out if you have it is to get regular blood pressure checks from your health care provider. Your provider will use a gauge, a stethoscope or electronic sensor, and a blood pressure cuff. He or she will take two or more readings at separate appointments before making a diagnosis.
You have high blood pressure if your readings show that
- Your systolic is 140 or higher OR
- Your diastolic is 90 or higher
Some providers may consider you to have high blood pressure if you have other heart risk factors and
- Your systolic is between 130 and 139 OR
- Your diastolic is between 80 and 89
Blood pressure readings above 180 /120 are dangerously high and require immediate medical attention.
For children and teens, the health care provider compares the blood pressure reading to what is normal for other kids who are the same age, height, and gender.
What are the different types of high blood pressure?
There are two main types of high blood pressure: primary and secondary high blood pressure.
- Primary, or essential, high blood pressure is the most common type of high blood pressure. For most people who get this kind of blood pressure, it develops over time as you get older.
- Secondary high blood pressure is caused by another medical condition or use of certain medicines. It usually gets better after you treat that condition or stop taking the medicines that are causing it.
Why do I need to worry about high blood pressure?
When your blood pressure stays high over time, it causes the heart to pump harder and work overtime, possibly leading to serious health problems such as heart attack, stroke, heart failure, and kidney failure.
What are the treatments for high blood pressure?
Treatments for high blood pressure include heart-healthy lifestyle changes and medicines.
You will work with your provider to come up with a treatment plan. It may include only the lifestyle changes. These changes, such as heart-healthy eating and exercise, can be very effective. But sometimes the changes do not control or lower your high blood pressure. Then you may need to take medicine. There are different types of blood pressure medicines. Some people need to take more than one type.
If your high blood pressure is caused by another medical condition or medicine, treating that condition or stopping the medicine may lower your blood pressure.
NIH: National Heart, Lung, and Blood Institute
- ACE inhibitors (Medical Encyclopedia)
- Blood pressure measurement (Medical Encyclopedia)
- Blood pressure monitors for home (Medical Encyclopedia)
- Controlling your high blood pressure (Medical Encyclopedia)
- Drug-induced hypertension (Medical Encyclopedia)
- High blood pressure (Medical Encyclopedia)
- High blood pressure - children (Medical Encyclopedia)
- High blood pressure and eye disease (Medical Encyclopedia)
- High blood pressure medications (Medical Encyclopedia)
- Hypertensive heart disease (Medical Encyclopedia)
- Low-salt diet (Medical Encyclopedia)
- Malignant hypertension (Medical Encyclopedia)
- Renovascular hypertension (Medical Encyclopedia)
[Learn More in MedlinePlus]