P28.0Primary atelectasis of newborn

P28.0 is the ICD-10-CM diagnosis code for primary atelectasis of newborn. It belongs to category P28 (other respiratory conditions originating in the perinatal period), 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 P28 (other respiratory conditions originating in the perinatal period), P28.0 is specifically for primary atelectasis of newborn. Related codes cover other and unspecified atelectasis of newborn (P28.1), Cyanotic attacks of newborn (P28.2), primary sleep apnea of newborn (P28.3), other apnea of newborn (P28.4), respiratory failure of newborn (P28.5), other specified respiratory conditions of newborn (P28.8) and respiratory condition of newborn, unspecified (P28.9).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), 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 770.4 (primary atelectasis).