ICD-9 Code 646.20
Unspecified renal disease in pregnancy, without mention of hypertension, unspecified as to episode of care or not applicable
Not Valid for Submission
646.20 is a legacy non-billable code used to specify a medical diagnosis of unspecified renal disease in pregnancy, without mention of hypertension, unspecified as to episode of care or not applicable. This code was replaced on September 30, 2015 by its ICD-10 equivalent.
ICD-9: | 646.20 |
Short Description: | Renal dis preg NOS-unsp |
Long Description: | Unspecified renal disease in pregnancy, without mention of hypertension, unspecified as to episode of care or not applicable |
Convert 646.20 to ICD-10
The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:
- O26.839 - Pregnancy related renal disease, unspecified trimester
Code Classification
-
Complications of pregnancy, childbirth, and the puerperium (630–679)
-
Complications mainly related to pregnancy (640-649)
- 646 Other complications of pregnancy, not elsewhere classified
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Complications mainly related to pregnancy (640-649)
Information for Medical Professionals
Code Edits
The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-9 Code Edits are applicable to this code:
- Maternity diagnoses (age 12 through 55) Maternity diagnoses (age 12 through 55)
Maternity diagnoses: Age range is 12–55 years inclusive.
Information for Patients
Health Problems in Pregnancy
Every pregnancy has some risk of problems. You may have problems because of a health condition you had before you got pregnant. You could also develop a condition during pregnancy. Other causes of problems during pregnancy can include being pregnant with more than one baby, a health problem in a previous pregnancy, drug use during pregnancy, or being over age 35. Any of these can affect your health, the health of your baby, or both.
If you have a chronic condition, you should talk to your health care provider about how to minimize your risk before you get pregnant. Once you are pregnant, you may need a health care team to monitor your pregnancy. Some common health problems that can complicate a pregnancy include:
- High blood pressure
- Polycystic ovary syndrome
- Kidney problems
- Autoimmune disorders
- Obesity
- HIV/AIDS
- Cancer
- Infections
Other conditions that can make pregnancy risky can happen while you are pregnant - for example, gestational diabetes and Rh incompatibility. Good prenatal care can help detect and treat them.
Some discomforts, like nausea, back pain, and fatigue, are common during pregnancy. Sometimes it is hard to know what is normal. Call your health care provider if something is bothering or worrying you.
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Kidney Diseases
You have two kidneys, each about the size of your fist. They are near the middle of your back, just below the rib cage. Inside each kidney there are about a million tiny structures called nephrons. They filter your blood. They remove wastes and extra water, which become urine. The urine flows through tubes called ureters. It goes to your bladder, which stores the urine until you go to the bathroom.
Most kidney diseases attack the nephrons. This damage may leave kidneys unable to remove wastes. Causes can include genetic problems, injuries, or medicines. You have a higher risk of kidney disease if you have diabetes, high blood pressure, or a close family member with kidney disease. Chronic kidney disease damages the nephrons slowly over several years. Other kidney problems include:
- Cancer
- Cysts
- Stones
- Infections
Your doctor can do blood and urine tests to check if you have kidney disease. If your kidneys fail, you will need dialysis or a kidney transplant.
NIH: National Institute of Diabetes and Digestive and Kidney Diseases
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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.