O04
Complications following (induced) termination of pregnancy
O04 is a non-billable ICD-10-CM code category for complications following (induced) termination of pregnancy. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are O04.5 Genital tract and pelvic infection following (induced) termination of pregnancy, O04.6 Delayed or excessive hemorrhage following (induced) termination of pregnancy, O04.7 Embolism following (induced) termination of pregnancy and O04.8 (Induced) termination of pregnancy with other and unspecified complications. Its coding notes include a Use additional code instruction, 2 Excludes1 entries and 6 Excludes2 entries.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
The trimester character comes from the provider's documentation for the current encounter. The unspecified trimester code should rarely be used.
Use additional code
Add the listed code as a secondary code, if known.
Also from chapter/block level (1 note)
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Also from chapter/block level (2 notes)
- supervision of normal pregnancy (Z34.-)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (4 notes)
Includes
Further defines or gives examples of the content of the category.
- complications following (induced) termination of pregnancy
Notes
Also from chapter/block level (6 notes)
- CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
- 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)
- Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
- 1st trimester- less than 14 weeks 0 days
- 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
- 3rd trimester- 28 weeks 0 days until delivery
More specific codes under O04 4
- O04.5Genital tract and pelvic infection following (induced) termination of pregnancyBillable
- O04.6Delayed or excessive hemorrhage following (induced) termination of pregnancyBillable
- O04.7Embolism following (induced) termination of pregnancyBillable
- O04.8(Induced) termination of pregnancy with other and unspecified complicationsHeader