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P22.1

P22.1Transient tachypnea of newborn

Billable / specific codeICD-10-CM

P22.1 is a billable, specific ICD-10-CM code for transient tachypnea of newborn. It is valid for submission on a claim.

Inclusion terms

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

  • Idiopathic tachypnea of newborn
  • Respiratory distress syndrome, type II
  • Wet lung syndrome

Other codes that can never be billed with P22.1

These codes carry an Excludes1 note pointing at P22.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading P22.1 alone.

Risk adjustment

P22.1 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How P22.1 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to P22.1.

  • IRDStype II
  • RDStype II
  • Tachypneanewborn(idiopathic) (transitory)
  • Tachypneatransitory, of newborn
  • Wetlung, newborn(syndrome)
  • Respiratorydistress syndrometype II
  • Syndromewetlung, newborn
  • Syndromerespiratorydistressnewborntype II

Related codes at this level

Codes that share P22. If P22.1 is not quite right, the correct code is usually one of these.

Questions about P22.1

Is P22.1 a billable ICD-10-CM code?
Yes. P22.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does P22.1 sit in the tabular list?
Certain conditions originating in the perinatal period (P00-P96), in the block Respiratory and cardiovascular disorders specific to the perinatal period (P19-P29).
ICD-10-CMFY2026-Apr· effective April 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.