DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

K90 Intestinal malabsorption

  • Header · not billable

K90 is not billable. The category heads 13 billable codes in FY2027, grouped under 7 subdivisions.

Index → code

Where it sits

  1. Chapter 11 Diseases of the digestive system (K00-K95)
  2. K90-K95 Other diseases of the digestive system (K90-K95)
  3. K90 Intestinal malabsorption
Billable codes
13
Subdivisions
7
CC / MCC codes
12 / 0
HCC V28 codes
0
New FY2027
0
Index entries
91

Codes in K90

  1. K90.0
    Celiac disease
    Billable
    Inclusion terms 3, Use additional code 3, Code also 1

    Inclusion terms

    • Celiac disease with steatorrhea
    • Celiac gluten-sensitive enteropathy
    • Nontropical sprue

    Use additional code

    • code for associated disorders including:
    • dermatitis herpetiformis (L13.0) L13.0
    • gluten ataxia (G32.81) G32.81

    Code also

    • exocrine pancreatic insufficiency (K86.81) K86.81
  2. K90.1
    Tropical sprue
    BillableCC
    Inclusion terms 2

    Inclusion terms

    • Sprue NOS
    • Tropical steatorrhea
  3. K90.2
    Blind loop syndrome, not elsewhere classified
    BillableCC
    Inclusion terms 1, Excludes1 2

    Inclusion terms

    • Blind loop syndrome NOS

    Excludes1

    • congenital blind loop syndrome (Q43.8) Q43.8
    • postsurgical blind loop syndrome (K91.2) K91.2
  4. K90.3
    Pancreatic steatorrhea
    BillableCC
  5. K90.4
    Other malabsorption due to intolerance
    Header
    Excludes2 2

    Excludes2

    • celiac gluten-sensitive enteropathy (K90.0) K90.0
    • lactose intolerance (E73.-) E73
  6. K90.41
    Non-celiac gluten sensitivity
    BillableCC
    Inclusion terms 2

    Inclusion terms

    • Gluten sensitivity NOS
    • Non-celiac gluten sensitive enteropathy
  7. K90.49
    Malabsorption due to intolerance, not elsewhere classified
    BillableCC
    Inclusion terms 4

    Inclusion terms

    • Malabsorption due to intolerance to carbohydrate
    • Malabsorption due to intolerance to fat
    • Malabsorption due to intolerance to protein
    • Malabsorption due to intolerance to starch
  8. K90.8
    Other intestinal malabsorption
    Header
  9. K90.81
    Whipple's disease
    BillableCC
  10. K90.82
    Short bowel syndrome
    Header
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Short gut syndrome

    Excludes1

    • postsurgical malabsorption, not elsewhere classified (K91.2) K91.2
  11. K90.821
    Short bowel syndrome with colon in continuity
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Short bowel syndrome with colonic continuity
  12. K90.822
    Short bowel syndrome without colon in continuity
    BillableCC
    Inclusion terms 1, Use additional code 1

    Inclusion terms

    • Short bowel syndrome without colonic continuity

    Use additional code

    • code, if applicable, for colostomy status (Z93.3) Z93.3
  13. K90.829
    Short bowel syndrome, unspecified
    BillableCC
  14. K90.83
    Intestinal failure
    BillableCC
  15. K90.89
    Other intestinal malabsorption
    BillableCC
  16. K90.9
    Intestinal malabsorption, unspecified
    BillableCC

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 K90

Excludes1

  • intestinal malabsorption following gastrointestinal surgery (K91.2) K91.2

Notes that also apply

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

Index entries

  • Gee (-Herter)(-Thaysen) disease (nontropical sprue) → K90.0
  • Herter-Gee syndrome → K90.0
  • Heubner-Herter disease → K90.0
  • Thaysen-Gee disease (nontropical sprue) → K90.0
  • Thaysen's disease → K90.0
  • Cochin-China diarrhea → K90.1
  • Psilosis (sprue) (tropical) → K90.1
  • Sprue (tropical) → K90.1
  • Whipple's disease → K90.81
  • Malabsorption → K90.9
  • Malassimilation → K90.9
  • Steatorrhea (chronic) → K90.9
  • Celiacdisease (with steatorrhea) → K90.0
  • Celiacinfantilism → K90.0
  • Crisisceliac → K90.0
  • Disease, diseasedceliac (adult) (infantile) (with steatorrhea) → K90.0
  • Disease, diseasedGee (-Herter) (-Heubner) (-Thaysen) (nontropical sprue) → K90.0
  • Disease, diseasedHerter (-Gee) (-Heubner) (nontropical sprue) → K90.0
  • Disease, diseasedHeubner-Herter (nontropical sprue) → K90.0
  • Disease, diseasedThaysen-Gee (nontropical sprue) → K90.0
  • Enteropathyceliac-gluten-sensitive → K90.0
  • Infancy, infantile, infantilismceliac → K90.0
  • Infancy, infantile, infantilismHerter's (nontropical sprue) → K90.0
  • Infancy, infantile, infantilismintestinal → K90.0
  • Morbusceliacus → K90.0
  • Psilosis (sprue) (tropical)nontropical → K90.0
  • Rickets (active) (acute) (adolescent) (chest wall) (congenital) (current) (infantile) (intestinal)celiac → K90.0
  • Sprue (tropical)celiac → K90.0
  • Sprue (tropical)nontropical → K90.0
  • Steatorrhea (chronic)primary → K90.0
  • Syndromeceliac → K90.0
  • SyndromeGee-Herter-Heubner → K90.0
  • SyndromeHerter (-Gee) (nontropical sprue) → K90.0
  • SyndromeHeubner-Herter → K90.0
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory)Cochin-China → K90.1
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory)hill → K90.1
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory)tropical → K90.1
  • Steatorrhea (chronic)tropical → K90.1
  • Blindloop syndrome → K90.2
  • Lane'ssyndrome → K90.2

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

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