P28.0 Primary atelectasis of newborn

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Primary failure to expand terminal respiratory units
• Pulmonary hypoplasia associated with short gestation
• Pulmonary immaturity NOS

Applies from P28 Other respiratory conditions originating in the perinatal period

Code also

• , if applicable, congenital malformations of the respiratory system (Q30-Q34)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 213 — Cardio-Respiratory Failure and Shock

MS-DRG index

Defines the logic of DRG(s) 791 in MDC 15.

Approximate ICD-9-CM (GEMs)

• 770.4 Primary atelectasis

Code annotations containing back-references to P28.0

Back-references to P28.0

• Type 1 Excludes: Q33.6 Congenital hypoplasia and dysplasia of lung ("pulmonary hypoplasia associated with short gestation (P28.0)")

Diagnosis Index entries for P28.0

• Apneumatosis, newborn
• Atelectasis (massive) (partial) (pressure) (pulmonary) › newborn › primary
• Atelectasis (massive) (partial) (pressure) (pulmonary) › primary (newborn)
• Failure, failed › expansion terminal respiratory units (newborn) (primary)
• Fetus, fetal › lung tissue
• Hypoplasia, hypoplastic › lung (lobe) (not associated with short gestation) › associated with immaturity, low birth weight, prematurity, or short gestation
• Hypoplasia, hypoplastic › pulmonary (not associated with short gestation) › associated with short gestation
• Immaturity (less than 37 completed weeks) › lung, newborn
• Immaturity (less than 37 completed weeks) › pulmonary, newborn
• Inadequate, inadequacy › development › lungs › associated with short gestation
• Nonexpansion, lung (newborn)
• Nonpneumatization, lung NEC
• Premature › lungs

Nearby codes

• P28 Other respiratory conditions originating in the perinatal period
• P28.0 Primary atelectasis of newborn (this code)
• P28.1 Other and unspecified atelectasis of newborn
• P28.10 Unspecified atelectasis of newborn
• P28.11 Resorption atelectasis without respiratory distress syndrome
• P28.19 Other atelectasis of newborn
• P28.2 Cyanotic attacks of newborn