ICD-10 Diagnosis Code O99.012

Anemia complicating pregnancy, second trimester

Diagnosis Code O99.012

ICD-10: O99.012
Short Description: Anemia complicating pregnancy, second trimester
Long Description: Anemia complicating pregnancy, second trimester
This is the 2018 version of the ICD-10-CM diagnosis code O99.012

Valid for Submission
The code O99.012 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Pregnancy, childbirth and the puerperium (O00–O99)
    • Encounter for delivery (O80-O82)
      • Oth maternal diseases classd elsw but compl preg/chldbrth (O99)

Information for Medical Professionals

Information for Patients


Also called: Iron poor blood

If you have anemia, your blood does not carry enough oxygen to the rest of your body. The most common cause of anemia is not having enough iron. Your body needs iron to make hemoglobin. Hemoglobin is an iron-rich protein that gives the red color to blood. It carries oxygen from the lungs to the rest of the body.

Anemia has three main causes: blood loss, lack of red blood cell production, and high rates of red blood cell destruction.

Conditions that may lead to anemia include

  • Heavy periods
  • Pregnancy
  • Ulcers
  • Colon polyps or colon cancer
  • Inherited disorders
  • A diet that does not have enough iron, folic acid or vitamin B12
  • Blood disorders such as sickle cell anemia and thalassemia, or cancer
  • Aplastic anemia, a condition that can be inherited or acquired
  • G6PD deficiency, a metabolic disorder

Anemia can make you feel tired, cold, dizzy, and irritable. You may be short of breath or have a headache.

Your doctor will diagnose anemia with a physical exam and blood tests. Treatment depends on the kind of anemia you have.

NIH: National Heart, Lung, and Blood Institute

  • Anemia (Medical Encyclopedia)
  • Anemia - B12 deficiency (Medical Encyclopedia)
  • Anemia caused by low iron -- infants and toddlers (Medical Encyclopedia)
  • Anemia of chronic disease (Medical Encyclopedia)
  • Anemia of Inflammation and Chronic Disease - NIH
  • Febrile/cold agglutinins (Medical Encyclopedia)
  • Ferritin blood test (Medical Encyclopedia)
  • Hemolytic anemia (Medical Encyclopedia)
  • Iron deficiency anemia (Medical Encyclopedia)
  • Managing Chemotherapy Side Effects: Anemia - NIH - Easy-to-Read (National Cancer Institute)
  • Pernicious anemia (Medical Encyclopedia)
  • Vitamin B12 level (Medical Encyclopedia)


Health Problems in Pregnancy

Every pregnancy has some risk of problems. The causes can be conditions you already have or conditions you develop. They also include being pregnant with more than one baby, previous problem pregnancies, or being over age 35. They can affect your health and the health of your baby.

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. Examples of common conditions that can complicate a pregnancy include

  • Heart disease
  • High blood pressure
  • Kidney problems
  • Autoimmune disorders
  • Sexually transmitted diseases
  • Diabetes
  • 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 doctor or midwife 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)

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