1. O62 Abnormalities of forces of labor

    1. O62.0 Primary inadequate contractions

      Inclusion term(s):

      • Failure of cervical dilatation
      • Primary hypotonic uterine dysfunction
      • Uterine inertia during latent phase of labor
    2. O62.1 Secondary uterine inertia

      Inclusion term(s):

      • Arrested active phase of labor
      • Secondary hypotonic uterine dysfunction
    3. O62.2 Other uterine inertia

      Inclusion term(s):

      • Atony of uterus without hemorrhage
      • Atony of uterus NOS
      • Desultory labor
      • Hypotonic uterine dysfunction NOS
      • Irregular labor
      • Poor contractions
      • Slow slope active phase of labor
      • Uterine inertia NOS
    4. O62.3 Precipitate labor

    5. O62.4 Hypertonic, incoordinate, and prolonged uterine contractions

      Inclusion term(s):

      • Cervical spasm
      • Contraction ring dystocia
      • Dyscoordinate labor
      • Hour-glass contraction of uterus
      • Hypertonic uterine dysfunction
      • Incoordinate uterine action
      • Tetanic contractions
      • Uterine dystocia NOS
      • Uterine spasm
    6. O62.8 Other abnormalities of forces of labor

    7. O62.9 Abnormality of forces of labor, 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.