1. O60 Preterm labor

    Includes:

    • onset (spontaneous) of labor before 37 completed weeks of gestation

    Excludes1

    1. O60.0 Preterm labor without delivery

      1. O60.00 Preterm labor without delivery, unspecified trimester

      2. O60.02 Preterm labor without delivery, second trimester

      3. O60.03 Preterm labor without delivery, third trimester

    2. O60.1 Preterm labor with preterm delivery

      1. O60.10 Preterm labor with preterm delivery, unspecified trimester

        Inclusion term(s):

        • Preterm labor with delivery NOS
      2. O60.12 Preterm labor second trimester with preterm delivery second trimester

      3. O60.13 Preterm labor second trimester with preterm delivery third trimester

      4. O60.14 Preterm labor third trimester with preterm delivery third trimester

    3. O60.2 Term delivery with preterm labor

      1. O60.20 Term delivery with preterm labor, unspecified trimester

      2. O60.22 Term delivery with preterm labor, second trimester

      3. O60.23 Term delivery with preterm labor, third trimester

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.