Excludes1 pair

K56- vs P76.0

K56 and P76.0 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 K56
meconium ileus NOS (P76.0)
K56

Paralytic ileus and intestinal obstruction without hernia

Not billable
Chapter 11
Diseases of the digestive system
Section
K55-K64
P76.0

Meconium plug syndrome

Billable
Chapter 16
Certain conditions originating in the perinatal period
Section
P76-P78
Use when the record says
  • Meconium ileus NOS
Indexed under
  • Delay, delayed › passage of meconium (newborn)
  • Ileus › meconium
  • Meconium › ileus, newborn
  • Meconium › obstruction, newborn
  • Meconium › plug syndrome NEC (newborn)

These two codes sit in different chapters of the Tabular List, which is usually the clearest signal that they describe different underlying processes rather than different degrees of the same one.

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