Diagnosis Code O21.9
Information for Medical Professionals
The following edits are applicable to this code:
Maternity diagnoses - Maternity. Age range is 12–55 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).
Diagnoses for females only - Diagnoses for females only.
Diagnostic Related Groups
The diagnosis code O21.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)
- 817 - OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURE WITH MCC
- 818 - OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURE WITH CC
- 819 - OTHER ANTEPARTUM DIAGNOSES WITH O.R. PROCEDURE WITHOUT CC/MCC
Convert to ICD-9
- 643.93 - Vomit of pg NOS-antepart (Approximate Flag)
- Hypertension AND/OR vomiting complicating pregnancy childbirth AND/OR puerperium
- Morning sickness
- Vomiting of pregnancy
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, substance abuse 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 conditions that can complicate a pregnancy include
- High blood pressure
- Polycystic ovary syndrome
- Kidney problems
- Autoimmune disorders
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.
- Bed rest during pregnancy (Medical Encyclopedia)
- Hydramnios (Medical Encyclopedia)
- Hyperemesis gravidarum (Medical Encyclopedia)
- Insufficient cervix (Medical Encyclopedia)
- Placenta abruptio (Medical Encyclopedia)
- Placenta abruptio (Medical Encyclopedia)
- Placenta previa (Medical Encyclopedia)
- Vaginal bleeding in early pregnancy (Medical Encyclopedia)
- Vaginal bleeding in late pregnancy (Medical Encyclopedia)
- Vaginal bleeding in pregnancy (Medical Encyclopedia)
Nausea and Vomiting
Also called: Emesis
Nausea is an uneasy or unsettled feeling in the stomach together with an urge to vomit. Nausea and vomiting, or throwing up, are not diseases. They can be symptoms of many different conditions. These include morning sickness during pregnancy, infections, migraine headaches, motion sickness, food poisoning, cancer chemotherapy or other medicines.
For vomiting in children and adults, avoid solid foods until vomiting has stopped for at least six hours. Then work back to a normal diet. Drink small amounts of clear liquids to avoid dehydration.
Nausea and vomiting are common. Usually, they are not serious. You should see a doctor immediately if you suspect poisoning or if you have
- Vomited for longer than 24 hours
- Blood in the vomit
- Severe abdominal pain
- Headache and stiff neck
- Signs of dehydration, such as dry mouth, infrequent urination or dark urine
- Bland diet (Medical Encyclopedia)
- Diet - clear liquid (Medical Encyclopedia)
- Nausea and vomiting (Medical Encyclopedia)
- When you have nausea and vomiting (Medical Encyclopedia)
General Equivalence Map Definitions
The ICD-10 and ICD-9 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.
Present on Admission
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.