P39.4 vs P83
P39.4 and P83 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.
The official note, declared on P83
neonatal skin infection (P39.4)
P39.4
Neonatal skin infection
Billable
- Chapter 16
- Certain conditions originating in the perinatal period
- Section
- P35-P39
Use when the record says
- Neonatal pyoderma
Indexed under
- Pyoderma, pyodermia › newborn
- Infection, infected, infective › congenital › skin (opportunistic)
- Infection, infected, infective › newborn › skin (opportunistic)
- Infection, infected, infective › skin › newborn (opportunistic)
P83
Other conditions of integument specific to newborn
Not billable
- Chapter 16
- Certain conditions originating in the perinatal period
- Section
- P80-P83
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