ICD-9 Diagnosis Code 631.0

Inapp chg hCG early preg

Diagnosis Code 631.0

ICD-9: 631.0
Short Description: Inapp chg hCG early preg
Long Description: Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy
This is the 2014 version of the ICD-9-CM diagnosis code 631.0

Code Classification
  • Complications of pregnancy, childbirth, and the puerperium
    • Ectopic and molar pregnancy and other pregnancy with abortive outcome (630-639)
      • 631 Other abnormal product of conception

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Maternity diagnoses (age 12 through 55) Additional informationCallout TooltipMaternity diagnoses (age 12 through 55)
Maternity diagnoses: Age range is 12–55 years inclusive.

Convert to ICD-10 Additional informationCallout TooltipGeneral Equivalence Map
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.
  • O02.81 - Inapprop chg quantitav hCG in early pregnancy

Index of Diseases and Injuries
References found for the code 631.0 in the Index of Diseases and Injuries:

    • Inappropriate
      • change in quantitative human chorionic gonadotropin (hCG) in early pregnancy 631.0
      • level of quantitative human chorionic gonadotropin (hCG) for gestational age in early pregnancy 631.0
    • Pregnancy (single) (uterine) (without sickness) V22.2
      • biochemical 631.0
      • chemical 631.0

Information for Patients


Also called: Spontaneous abortion

A miscarriage is the loss of pregnancy from natural causes before the 20th week of pregnancy. Most miscarriages occur very early in the pregnancy, often before a woman even knows she is pregnant. There are many different causes for a miscarriage. In most cases, there is nothing you can do to prevent a miscarriage.

Factors that may contribute to miscarriage include

  • A genetic problem with the fetus. This is the most common cause in the first trimester.
  • Problems with the uterus or cervix. These contribute in the second trimester.
  • Polycystic ovary syndrome

Signs of a miscarriage can include vaginal spotting or bleeding, abdominal pain or cramping, and fluid or tissue passing from the vagina. Although vaginal bleeding is a common symptom of miscarriage, many women have spotting early in their pregnancy but do not miscarry. But if you are pregnant and have bleeding or spotting, contact your health care provider immediately.

Women who miscarry early in their pregnancy usually do not need any treatment. In some cases, you may need a procedure called a dilatation and curettage (D&C) to remove tissue remaining in the uterus.

Counseling may help you cope with your grief. Later, if you do decide to try again, work closely with your health care provider to lower the risks. Many women who have a miscarriage go on to have healthy babies.

NIH: National Institute of Child Health and Human Development

  • Choriocarcinoma
  • D and C
  • HCG blood test - quantitative
  • Miscarriage
  • Miscarriage - threatened
  • Serum progesterone

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