P28 vs P28.2
P28 and P28.2 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
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 (infant) (liveborn) (singleton)
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