ICD-10 code for complicated abortion

The ICD-10-CM code for complicated abortion is O03.80 (Unspecified complication following complete or unspecified spontaneous abortion). The official index lists 32 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on O03.80.

Within O03.8, choose O03.80 (Unspecified complication following complete or unspecified spontaneous abortion) only when documentation doesn't support a more specific option: shock following complete or unspecified spontaneous abortion (O03.81), renal failure following complete or unspecified spontaneous abortion (O03.82), metabolic disorder following complete or unspecified spontaneous abortion (O03.83), damage to pelvic organs following complete or unspecified spontaneous abortion (O03.84), other venous complications following complete or unspecified spontaneous abortion (O03.85), cardiac arrest following complete or unspecified spontaneous abortion (O03.86), sepsis following complete or unspecified spontaneous abortion (O03.87), urinary tract infection following complete or unspecified spontaneous abortion (O03.88) and 1 more.

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 770 (Abortion with D&C, Aspiration Curettage or Hysterotomy, relative weight 1.0992) and DRG 779 (Abortion without D&C, relative weight 1.0203), in MDC 14 (Pregnancy, Childbirth and the Puerperium), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.