ICD-10-CM > O00-O9A > O60-O77 > O77 > O77.9 O77.9 Labor and delivery complicated by fetal stress, unspecified Billable/Specific Copy Code Copy Description Type 1 Excludes abnormality of fetal acid-base balance (O68)abnormality in fetal heart rate or rhythm (O76)fetal metabolic acidemia (O68)