O99.41

Diseases of the circulatory system complicating pregnancy

Non-billable header

O99.41 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes (from O99)

  • conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care
  • 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.

  • peripartum cardiomyopathy (O90.3) (from O99.4)
  • supervision of normal pregnancy (Z34.-) (from O99)

Excludes2

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

  • hypertensive disorders (O10-O16) (from O99.4)
  • obstetric embolism (O88.-) (from O99.4)
  • venous complications and cerebrovenous sinus thrombosis in labor, childbirth and the puerperium (O87.-) (from O99.4)
  • venous complications and cerebrovenous sinus thrombosis in pregnancy (O22.-) (from O99.4)
  • mental and behavioral disorders associated with the puerperium (F53.-) (from O99)
  • obstetrical tetanus (A34) (from O99)
  • postpartum necrosis of pituitary gland (E23.0) (from O99)
  • puerperal osteomalacia (M83.0) (from O99)
  • when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36) (from O99)

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 O99)
  • code to identify specific condition (from O99)

Also known as

  • Pregnancy, complicated by, cardiovascular diseases
  • Pregnancy, complicated by, cerebrovascular disorders

Parent code

  • O99.4Diseases of the circulatory system complicating pregnancy, childbirth and the puerperiumHeader

More specific codes O99.41

  • O99.411Diseases of the circulatory system complicating pregnancy, first trimesterBillable
  • O99.412Diseases of the circulatory system complicating pregnancy, second trimesterBillable
  • O99.413Diseases of the circulatory system complicating pregnancy, third trimesterBillable
  • O99.419Diseases of the circulatory system complicating pregnancy, unspecified trimesterBillable

Related codes

  • O99.42Diseases of the circulatory system complicating childbirthBillable
  • O99.43Diseases of the circulatory system complicating the puerperiumBillable

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