P84 vs P91
P84 and P91 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 P84
hypoxic ischemic encephalopathy [HIE] (P91.6-)
P84
Other problems with newborn
Billable
- Chapter 16
- Certain conditions originating in the perinatal period
- Section
- P84
Use when the record says
- Acidemia of newborn
- Acidosis of newborn
- Anoxia of newborn NOS
- Asphyxia of newborn NOS
- Hypercapnia of newborn
- Hypoxemia of newborn
- Hypoxia of newborn NOS
- Mixed metabolic and respiratory acidosis of newborn
Indexed under
- Acidosis › mixed metabolic and respiratory, newborn (lactic)
- Acidosis › newborn (lactic)
- Anoxemia › newborn
- Anoxia › intrauterine (pathological)
- Anoxia › newborn (pathological)
P91
Other disturbances of cerebral status of newborn
Not billable
- Chapter 16
- Certain conditions originating in the perinatal period
- Section
- P90-P96
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