Coding and coverage · ICD-10-CM

O03

O03.3 Other and unspecified complications following incomplete spontaneous abortion

Not billable (header)Chapter 15

Report one of the more specific codes below.

Codes under this one

  • O03.30 Unspecified complication following incomplete spontaneous abortion
  • O03.31 Shock following incomplete spontaneous abortion
  • O03.32 Renal failure following incomplete spontaneous abortion
  • O03.33 Metabolic disorder following incomplete spontaneous abortion
  • O03.34 Damage to pelvic organs following incomplete spontaneous abortion
  • O03.35 Other venous complications following incomplete spontaneous abortion
  • O03.36 Cardiac arrest following incomplete spontaneous abortion
  • O03.37 Sepsis following incomplete spontaneous abortion
  • O03.38 Urinary tract infection following incomplete spontaneous abortion
  • O03.39 Incomplete spontaneous abortion with other complications

Instructional notes

Chapter 15

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • supervision of normal pregnancy (Z34.-)
Excludes2Not included here: the patient may have both; report both when both are present.
  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)
Use additional codeAdd a second code for the full picture.
  • code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
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

Section O00-O08

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • continuing pregnancy in multiple gestation after abortion of one fetus or more (O31.1-, O31.3-)

O03

Includes
  • miscarriage
Notes
  • Incomplete abortion includes retained products of conception following spontaneous abortion

Chapter 15: Pregnancy, childbirth and the puerperium (O00-O9A) · O00-O08 Pregnancy with abortive outcome (O00-O08)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.