O36.8335

Maternal care for abnormalities of the fetal heart rate or rhythm, third trimester, fetus 5

Billable / specific

O36.8335 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Includes (from O36)

  • the listed conditions in the fetus as a reason for hospitalization or other obstetric care of the mother, or for termination of pregnancy
  • 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.

  • supervision of normal pregnancy (Z34.-) (from O36)
  • encounter for suspected maternal and fetal conditions ruled out (Z03.7-) (from O36)
  • placental transfusion syndromes (O43.0-) (from O36)

Excludes2

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

  • mental and behavioral disorders associated with the puerperium (F53.-) (from O36)
  • obstetrical tetanus (A34) (from O36)
  • postpartum necrosis of pituitary gland (E23.0) (from O36)
  • puerperal osteomalacia (M83.0) (from O36)
  • labor and delivery complicated by fetal stress (O77.-) (from O36)

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 O36)

7th character

The 7th character values that apply to this code (defined at O36). Use the placeholder "X" for missing positions.

CharacterMeaning
0not applicable or unspecified
1fetus 1
2fetus 2
3fetus 3
4fetus 4
5fetus 5
9other fetus

Parent code

  • O36.833Maternal care for abnormalities of the fetal heart rate or rhythm, third trimesterNeeds 7th char

Related codes

  • O36.8330Maternal care for abnormalities of the fetal heart rate or rhythm, third trimester, not applicable or unspecifiedBillable
  • O36.8331Maternal care for abnormalities of the fetal heart rate or rhythm, third trimester, fetus 1Billable
  • O36.8332Maternal care for abnormalities of the fetal heart rate or rhythm, third trimester, fetus 2Billable
  • O36.8333Maternal care for abnormalities of the fetal heart rate or rhythm, third trimester, fetus 3Billable
  • O36.8334Maternal care for abnormalities of the fetal heart rate or rhythm, third trimester, fetus 4Billable
  • O36.8339Maternal care for abnormalities of the fetal heart rate or rhythm, third trimester, other fetusBillable

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