DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

P77 Necrotizing enterocolitis of newborn

  • Header · not billable

P77 is not billable. The category heads 4 billable codes in FY2027: the 4 codes directly below it.

Index → code

  • Enterocolitisnecrotizingin newborn → P77.9
  • Enterocolitisnecrotizingin newbornstage 3 (with pneumatosis, with perforation) → P77.3
  • Enterocolitisnecrotizingin newbornstage 2 (with pneumatosis, without perforation) → P77.2

Where it sits

  1. Chapter 16 Certain conditions originating in the perinatal period (P00-P96)
  2. P76-P78 Digestive system disorders of newborn (P76-P78)
  3. P77 Necrotizing enterocolitis of newborn
Billable codes
4
Subdivisions
4
CC / MCC codes
0 / 4
HCC V28 codes
4
New FY2027
0
Index entries
4

Codes in P77

  1. P77.1
    Stage 1 necrotizing enterocolitis in newborn
    BillableMCC78
    Inclusion terms 1

    Inclusion terms

    • Necrotizing enterocolitis without pneumatosis, without perforation
  2. P77.2
    Stage 2 necrotizing enterocolitis in newborn
    BillableMCC78
    Inclusion terms 1

    Inclusion terms

    • Necrotizing enterocolitis with pneumatosis, without perforation
  3. P77.3
    Stage 3 necrotizing enterocolitis in newborn
    BillableMCC78
    Inclusion terms 2

    Inclusion terms

    • Necrotizing enterocolitis with perforation
    • Necrotizing enterocolitis with pneumatosis and perforation
  4. P77.9
    Necrotizing enterocolitis in newborn, unspecified
    BillableMCC78
    Inclusion terms 1

    Inclusion terms

    • Necrotizing enterocolitis in newborn, NOS

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

Notes that also apply

Chapter 16 instructions (Notes 1, Includes 1, Excludes2 5): printed on the chapter 16 page.

Index entries

  • Enterocolitisnecrotizingin newborn → P77.9
  • Enterocolitisnecrotizingin newbornstage 1 (without pneumatosis, without perforation) → P77.1
  • Enterocolitisnecrotizingin newbornstage 2 (with pneumatosis, without perforation) → P77.2
  • Enterocolitisnecrotizingin newbornstage 3 (with pneumatosis, with perforation) → P77.3

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy