P19.1Metabolic acidemia in newborn first noted during labor

P19.1 is the ICD-10-CM diagnosis code for metabolic acidemia in newborn first noted during labor. It belongs to category P19 (metabolic acidemia in newborn), block P19-P29 (respiratory and cardiovascular disorders specific to the perinatal period) 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 P19 (metabolic acidemia in newborn), P19.1 is specifically for metabolic acidemia in newborn first noted during labor. Related codes cover first noted before onset of labor (P19.0), noted at birth (P19.2) and unspecified (P19.9).

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 hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 768.3 (fetal distress first noted during labor and delivery, in liveborn infant).