FY2027
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Excludes1 pair

P19- vs P74.0

P19 and P74.0 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 P74.0
(fetal) metabolic acidosis of newborn (P19)
P19

Metabolic acidemia in newborn

Not billable
Chapter 16
Certain conditions originating in the perinatal period
Section
P19-P29
Use when the record says
  • metabolic acidemia in newborn
P74.0

Late metabolic acidosis of newborn

Billable
Chapter 16
Certain conditions originating in the perinatal period
Section
P70-P74
Indexed under
  • Newborn › late metabolic acidosis
  • Acidosis › metabolic NEC › late, of newborn

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