P03.810Newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm before the onset of labor

P03.810 is the ICD-10-CM diagnosis code for newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm before the onset of labor. It belongs to category P03 (newborn affected by other complications of labor and delivery), block P00-P04 (newborn affected by maternal factors and by complications of pregnancy, labor, and delivery) and chapter 16 (certain conditions originating in the perinatal period). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within P03.81 (newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm), P03.810 is specifically for newborn affected by abnormality in fetal (intrauterine) heart rate or rhythm before the onset of labor. Related codes cover during labor (P03.811) and unspecified as to time of onset (P03.819).

Code first: any current condition in newborn.

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 794 (Neonate with Other Significant Problems, relative weight 1.4935), in MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (title revised).

Before ICD-10, this condition was coded in ICD-9-CM as 763.81 (abnormality in fetal heart rate or rhythm before the onset of labor).