FY2027
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Excludes1 pair

P28- vs P28.2

P28 and P28.2 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.

The official note, declared on P28.2
apnea of newborn (P28.3- - P28.4-)
P28

Other respiratory conditions originating in the perinatal period

Not billable
Chapter 16
Certain conditions originating in the perinatal period
Section
P19-P29
P28.2

Cyanotic attacks of newborn

Billable
Chapter 16
Certain conditions originating in the perinatal period
Section
P19-P29
Indexed under
  • Acrocyanosis › newborn
  • Attack, attacks › cyanotic, newborn
  • Newborn › affected by › cyanosis

Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027