DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

E84 Cystic fibrosis

  • Header · not billable

E84 is not billable. The category heads 5 billable codes in FY2027, grouped under 4 subdivisions.

Index → code

  • Mucoviscidosis → E84.9
  • Fibrosis, fibroticcystic (of pancreas) → E84.9
  • Mucoviscidosiswith meconium obstruction → E84.11

Where it sits

  1. Chapter 4 Endocrine, nutritional and metabolic diseases (E00-E89)
  2. E70-E88 Metabolic disorders (E70-E88)
  3. E84 Cystic fibrosis
Billable codes
5
Subdivisions
4
CC / MCC codes
3 / 2
HCC V28 codes
5
New FY2027
0
Index entries
17

Codes in E84

  1. E84.0
    Cystic fibrosis with pulmonary manifestations
    BillableMCC277
    Use additional code 2

    Use additional code

    • code to identify any infectious organism present, such as:
    • Pseudomonas (B96.5) B96.5
  2. E84.1
    Cystic fibrosis with intestinal manifestations
    Header
  3. E84.11
    Meconium ileus in cystic fibrosis
    BillableMCC277
    Excludes1 1

    Excludes1

    • meconium ileus not due to cystic fibrosis (P76.0) P76.0
  4. E84.19
    Cystic fibrosis with other intestinal manifestations
    BillableCC277
    Inclusion terms 1

    Inclusion terms

    • Distal intestinal obstruction syndrome
  5. E84.8
    Cystic fibrosis with other manifestations
    BillableCC277
  6. E84.9
    Cystic fibrosis, unspecified
    BillableCC277

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 E84

Includes

  • mucoviscidosis

Code also

  • exocrine pancreatic insufficiency (K86.81) K86.81

Notes that also apply

Block E70-E88 instructions (Excludes1 5, Excludes2 1): printed on the block page.

Chapter 4 instructions (Notes 1, Excludes1 1): printed on the chapter 4 page.

Index entries

  • Mucoviscidosis → E84.9
  • Mucoviscidosiswith meconium obstruction → E84.11
  • Fibrosis, fibroticcystic (of pancreas) → E84.9
  • Ileus (bowel) (colon) (inhibitory) (intestine)meconiumin cystic fibrosis → E84.11
  • Meconiumileus, newbornin cystic fibrosis → E84.11
  • Meconiumobstruction, newbornin mucoviscidosis → E84.11
  • Disease, diseasedpancreasfibrocystic → E84.9
  • Fibrocysticdiseasepancreas → E84.9
  • Fibrosis, fibroticcystic (of pancreas)withpulmonary manifestations → E84.0
  • Ileus (bowel) (colon) (inhibitory) (intestine)newborndue to meconiumin cystic fibrosis → E84.11
  • Obstruction, obstructed, obstructivemeconium (plug)newbornin mucoviscidosis → E84.11
  • Fibrosis, fibroticcystic (of pancreas)withdistal intestinal obstruction syndrome → E84.19
  • Fibrosis, fibroticcystic (of pancreas)withfecal impaction → E84.19
  • Fibrosis, fibroticcystic (of pancreas)withintestinal manifestations NEC → E84.19
  • Fibrosis, fibroticcystic (of pancreas)withspecified manifestations NEC → E84.8
  • Jaundice (yellow)newborndue to or associated withmucoviscidosis → E84.9
  • Obstruction, obstructed, obstructiveintestinenewborndue tomeconium (plug)in mucoviscidosis → E84.11

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

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