ICD-10-CM>O00-O9A>O60-O77>O62O62Abnormalities of forces of laborNon-Billable/Non-SpecificCodesO62.0Primary inadequate contractionsO62.1Secondary uterine inertiaO62.2Other uterine inertiaO62.3Precipitate laborO62.4Hypertonic, incoordinate, and prolonged uterine contractionsO62.8Other abnormalities of forces of laborO62.9Abnormality of forces of labor, unspecified