O02.81

Inappropriate change in quantitative human chorionic gonadotropin (hCG) in early pregnancy

Billable / specific

O02.81 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Biochemical pregnancy
  • Chemical pregnancy
  • Inappropriate level of quantitative human chorionic gonadotropin (hCG) for gestational age in early pregnancy

Includes (from O02)

  • Note: CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
  • Note: Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
  • Note: Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
  • Note: 1st trimester- less than 14 weeks 0 days
  • Note: 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
  • Note: 3rd trimester- 28 weeks 0 days until delivery

Excludes1

Not coded here — never report together with this code.

  • abnormal products of conception with blighted ovum (O02.0) (from O02.8)
  • abnormal products of conception with hydatidiform mole (O01.-) (from O02.8)
  • abnormal products of conception with nonhydatidiform mole (O02.0) (from O02.8)
  • supervision of normal pregnancy (Z34.-) (from O02)
  • continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-) (from O02)
  • papyraceous fetus (O31.0-) (from O02)

Excludes2

Not included here — may be reported together when both conditions exist.

  • mental and behavioral disorders associated with the puerperium (F53.-) (from O02)
  • obstetrical tetanus (A34) (from O02)
  • postpartum necrosis of pituitary gland (E23.0) (from O02)
  • puerperal osteomalacia (M83.0) (from O02)

Use additional code

Add a code to identify the following, if applicable.

  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known. (from O02)
  • code from category O08 to identify any associated complication. (from O02)

Also known as

  • Biochemical pregnancy
  • Chemical pregnancy
  • Inappropriate level of quantitative human chorionic gonadotropin (hCG) for gestational age in early pregnancy
  • Inappropriate, change in quantitative human chorionic gonadotropinin early pregnancy
  • Inappropriate, level of quantitative human chorionic gonadotropinfor gestational age in early pregnancy
  • Pregnancy, biochemical
  • Pregnancy, chemical

Parent code

  • O02.8Other specified abnormal products of conceptionHeader

Related codes

  • O02.89Other abnormal products of conceptionBillable

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