P28.0
Primary atelectasis of newborn
Risk-adjusting (HCC)Billable code
HCC risk adjustment mapping
CMS-HCC V28
HCC213
Cardio-Respiratory Failure and Shock
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
This code · P28.0
Synonyms
Primary failure to expand terminal respiratory units Pulmonary hypoplasia associated with short gestation Pulmonary immaturity NOS
Inherited from P28Oth respiratory conditions origin in the perinatal period
Code also
, if applicable, congenital malformations of the respiratory system (Q30-Q34)
Inherited from chapter 16Certain conditions originating in the perinatal period
Includes
conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later
Official Guidelines for P28.0
FY 2026 ›I.C.16Chapter-specific guidanceChapter 16: Certain Conditions Originating in the Perinatal Period
Subsections
- I.C.16.aGeneral Perinatal Rules
- I.C.16.bObservation and Evaluation of Newborns for Suspected
- I.C.16.cCoding Additional Perinatal Diagnoses
- I.C.16.dPrematurity and Fetal Growth Retardation
- I.C.16.eLow birth weight and immaturity status
- I.C.16.fBacterial Sepsis of Newborn
- I.C.16.gStillbirth
- I.C.16.hCOVID-19 Infection in Newborn
Find P28.0 in the alphabetic index
13 index paths lead to this code
- Apneumatosis, newborn
- Nonexpansion, lung
- Nonpneumatization, lung NEC
- Atelectasis › primary
- Failure, failed › expansion terminal respiratory units
- 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
- Inadequate, inadequacy › development › lungs › associated with short gestation