DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

K57 Diverticular disease of intestine

  • Header · not billable

K57 is not billable. The category heads 24 billable codes in FY2027, grouped under 8 subdivisions.

Index → code

  • Diverticulosis → K57.90
  • Diverticulitis (acute) → K57.92
  • Peridiverticulitis (intestine) → K57.92

Where it sits

  1. Chapter 11 Diseases of the digestive system (K00-K95)
  2. K55-K64 Other diseases of intestines (K55-K64)
  3. K57 Diverticular disease of intestine
Billable codes
24
Subdivisions
8
CC / MCC codes
8 / 12
HCC V28 codes
0
New FY2027
0
Index entries
73

Codes in K57

  1. K57.0
    Diverticulitis of small intestine with perforation and abscess
    Header
    Excludes1 1

    Excludes1

    • diverticulitis of both small and large intestine with perforation and abscess (K57.4-) K57.4
  2. K57.00
    Diverticulitis of small intestine with perforation and abscess without bleeding
    BillableCC
  3. K57.01
    Diverticulitis of small intestine with perforation and abscess with bleeding
    BillableMCC
  4. K57.1
    Diverticular disease of small intestine without perforation or abscess
    Header
    Excludes1 1

    Excludes1

    • diverticular disease of both small and large intestine without perforation or abscess (K57.5-) K57.5
  5. K57.10
    Diverticulosis of small intestine without perforation or abscess without bleeding
    Billable
    Inclusion terms 1

    Inclusion terms

    • Diverticular disease of small intestine NOS
  6. K57.11
    Diverticulosis of small intestine without perforation or abscess with bleeding
    BillableMCC
  7. K57.12
    Diverticulitis of small intestine without perforation or abscess without bleeding
    BillableCC
  8. K57.13
    Diverticulitis of small intestine without perforation or abscess with bleeding
    BillableMCC
  9. K57.2
    Diverticulitis of large intestine with perforation and abscess
    Header
    Excludes1 1

    Excludes1

    • diverticulitis of both small and large intestine with perforation and abscess (K57.4-) K57.4
  10. K57.20
    Diverticulitis of large intestine with perforation and abscess without bleeding
    BillableCC
  11. K57.21
    Diverticulitis of large intestine with perforation and abscess with bleeding
    BillableMCC
  12. K57.3
    Diverticular disease of large intestine without perforation or abscess
    Header
    Excludes1 1

    Excludes1

    • diverticular disease of both small and large intestine without perforation or abscess (K57.5-) K57.5
  13. K57.30
    Diverticulosis of large intestine without perforation or abscess without bleeding
    Billable
    Inclusion terms 1

    Inclusion terms

    • Diverticular disease of colon NOS
  14. K57.31
    Diverticulosis of large intestine without perforation or abscess with bleeding
    BillableMCC
  15. K57.32
    Diverticulitis of large intestine without perforation or abscess without bleeding
    BillableCC
  16. K57.33
    Diverticulitis of large intestine without perforation or abscess with bleeding
    BillableMCC
  17. K57.4
    Diverticulitis of both small and large intestine with perforation and abscess
    Header
  18. K57.40
    Diverticulitis of both small and large intestine with perforation and abscess without bleeding
    BillableCC
  19. K57.41
    Diverticulitis of both small and large intestine with perforation and abscess with bleeding
    BillableMCC
  20. K57.5
    Diverticular disease of both small and large intestine without perforation or abscess
    Header
  21. K57.50
    Diverticulosis of both small and large intestine without perforation or abscess without bleeding
    Billable
    Inclusion terms 1

    Inclusion terms

    • Diverticular disease of both small and large intestine NOS
  22. K57.51
    Diverticulosis of both small and large intestine without perforation or abscess with bleeding
    BillableMCC
  23. K57.52
    Diverticulitis of both small and large intestine without perforation or abscess without bleeding
    BillableCC
  24. K57.53
    Diverticulitis of both small and large intestine without perforation or abscess with bleeding
    BillableMCC
  25. K57.8
    Diverticulitis of intestine, part unspecified, with perforation and abscess
    Header
  26. K57.80
    Diverticulitis of intestine, part unspecified, with perforation and abscess without bleeding
    BillableCC
  27. K57.81
    Diverticulitis of intestine, part unspecified, with perforation and abscess with bleeding
    BillableMCC
  28. K57.9
    Diverticular disease of intestine, part unspecified, without perforation or abscess
    Header
  29. K57.90
    Diverticulosis of intestine, part unspecified, without perforation or abscess without bleeding
    Billable
    Inclusion terms 1

    Inclusion terms

    • Diverticular disease of intestine NOS
  30. K57.91
    Diverticulosis of intestine, part unspecified, without perforation or abscess with bleeding
    BillableMCC
  31. K57.92
    Diverticulitis of intestine, part unspecified, without perforation or abscess without bleeding
    BillableCC
  32. K57.93
    Diverticulitis of intestine, part unspecified, without perforation or abscess with bleeding
    BillableMCC

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

At K57

Excludes1

  • congenital diverticulum of intestine (Q43.8) Q43.8
  • Meckel's diverticulum (Q43.0) Q43.0

Excludes2

  • diverticulum of appendix (K38.2) K38.2

Code also

  • if applicable:
  • pelvic abscess (K6A.0-) K6A.0
  • peritonitis (K65.-) K65

Notes that also apply

Chapter 11 instructions (Excludes2 8): printed on the chapter 11 page.

Index entries

  • Diverticulosis → K57.90
  • Diverticulum, diverticula (multiple) → K57.90
  • Diverticulitis (acute) → K57.92
  • Peridiverticulitis (intestine) → K57.92
  • Diverticulosissmall intestine → K57.10
  • Diverticulosislarge intestine → K57.30
  • Perforation, perforated (nontraumatic) (of)diverticulum (intestine) → K57.80
  • Rupture, ruptureddiverticulum (intestine) → K57.80
  • Diverticulosiswith bleeding → K57.91
  • Diverticulitis (acute)intestine → K57.92
  • Perforation, perforated (nontraumatic) (of)diverticulum (intestine)small intestine → K57.00
  • Rupture, ruptureddiverticulum (intestine)small intestine → K57.00
  • Diverticulitis (acute)intestinesmall → K57.12
  • Perforation, perforated (nontraumatic) (of)diverticulum (intestine)large intestine → K57.20
  • Rupture, ruptureddiverticulum (intestine)large intestine → K57.20
  • Diverticulitis (acute)intestinelarge → K57.32
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)withdiverticular disease (intestine) → K57.80
  • Peritonitis (adhesive) (bacterial) (fibrinous) (hemorrhagic) (idiopathic) (localized) (perforative) (primary) (with adhesions) (with effusion)with or followingdiverticular disease (intestine) → K57.80
  • Perforation, perforated (nontraumatic) (of)diverticulum (intestine)with bleeding → K57.81
  • Rupture, ruptureddiverticulum (intestine)with bleeding → K57.81
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)withdiverticular disease (intestine)small intestine → K57.00
  • Peritonitis (adhesive) (bacterial) (fibrinous) (hemorrhagic) (idiopathic) (localized) (perforative) (primary) (with adhesions) (with effusion)with or followingdiverticular disease (intestine)small intestine → K57.00
  • Diverticulosissmall intestinewithbleeding → K57.11
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)withdiverticular disease (intestine)large intestine → K57.20
  • Peritonitis (adhesive) (bacterial) (fibrinous) (hemorrhagic) (idiopathic) (localized) (perforative) (primary) (with adhesions) (with effusion)with or followingdiverticular disease (intestine)large intestine → K57.20
  • Diverticulosislarge intestinewithbleeding → K57.31
  • Diverticulosislarge intestinewithsmall intestine → K57.50
  • Diverticulosissmall intestinewithlarge intestine → K57.50
  • Diverticulitis (acute)intestinewithabscess, perforation → K57.80
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)withdiverticular disease (intestine)with bleeding → K57.81
  • Peritonitis (adhesive) (bacterial) (fibrinous) (hemorrhagic) (idiopathic) (localized) (perforative) (primary) (with adhesions) (with effusion)with or followingdiverticular disease (intestine)with bleeding → K57.81
  • Diverticulitis (acute)intestinewithbleeding → K57.93
  • Diverticulitis (acute)intestinesmallwithabscess, perforation → K57.00
  • Perforation, perforated (nontraumatic) (of)diverticulum (intestine)small intestinewithbleeding → K57.01
  • Rupture, ruptureddiverticulum (intestine)small intestinewithbleeding → K57.01
  • Diverticulitis (acute)intestinesmallwithbleeding → K57.13
  • Diverticulitis (acute)intestinelargewithabscess, perforation → K57.20
  • Perforation, perforated (nontraumatic) (of)diverticulum (intestine)large intestinewithbleeding → K57.21
  • Rupture, ruptureddiverticulum (intestine)large intestinewithbleeding → K57.21
  • Diverticulitis (acute)intestinelargewithbleeding → K57.33

33 more, longer entries are not listed; the search box finds them by word.

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

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