MCMedicalCodingSoftware
P28.0

P28.0: Primary atelectasis of newborn

Billable / specific codeICD-10-CM

P28.0 is a billable, specific ICD-10-CM code for primary atelectasis of newborn. It is valid for submission on a claim.

Check P28.0 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

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

Other codes that can never be billed with P28.0

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • Q33.6Congenital hypoplasia and dysplasia of lung

Risk adjustment

P28.0 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 213 Cardio-Respiratory Failure and Shock0.370 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Alphabetic index entries that lead here

  • Apneumatosis, newborn
  • Nonexpansion, lung(newborn)
  • Nonpneumatization, lung NEC
  • Atelectasis›primary(newborn)
  • Failure, failed›expansion terminal respiratory units(newborn) (primary)
  • Fetus, fetal›lung tissue
  • Immaturity›lung, newborn
  • Immaturity›pulmonary, newborn
  • Premature›lungs
  • Atelectasis›newborn›primary
  • Hypoplasia, hypoplastic›lung›associated with immaturity, low birth weight, prematurity, or short gestation
  • Hypoplasia, hypoplastic›pulmonary›associated with short gestation

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under P28

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.