• maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
  • maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)
  1. O20 Hemorrhage in early pregnancy


    • hemorrhage before completion of 20 weeks gestation


    • pregnancy with abortive outcome (O00-O08)
    1. O20.0 Threatened abortion

      Inclusion term(s):

      • Hemorrhage specified as due to threatened abortion
    2. O20.8 Other hemorrhage in early pregnancy

    3. O20.9 Hemorrhage in early pregnancy, unspecified

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.