P80.0 vs P80.8
P80.0 and P80.8 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 P80.0
mild hypothermia of newborn (P80.8)
P80.0
Cold injury syndrome
Billable
- Chapter 16
- Certain conditions originating in the perinatal period
- Section
- P80-P83
Use when the record says
- Severe and usually chronic hypothermia associated with a pink flushed appearance, edema and neurological and biochemical abnormalities.
Indexed under
- Cold › injury syndrome
- Syndrome › cold injury
- Hypothermia › neonatal › severe (accidental)
- Temperature › cold, trauma from › newborn
P80.8
Other hypothermia of newborn
Billable
- Chapter 16
- Certain conditions originating in the perinatal period
- Section
- P80-P83
Use when the record says
- Mild hypothermia of newborn
Indexed under
- Hypothermia › neonatal › environmentalNEC (accidental)
- Hypothermia › neonatal › mild (accidental)
- Hypothermia › neonatal › specified NEC (accidental)
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