DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

I30 Acute pericarditis

  • Header · not billable

I30 is not billable. The category heads 4 billable codes in FY2027: the 4 codes directly below it.

Index → code

  • Pneumopyopericardium → I30.1
  • Pyopneumopericardium → I30.1
  • Pyopericarditis, pyopericardium → I30.1

Where it sits

  1. Chapter 9 Diseases of the circulatory system (I00-I99)
  2. I30-I5A Other forms of heart disease (I30-I5A)
  3. I30 Acute pericarditis
Billable codes
4
Subdivisions
4
CC / MCC codes
4 / 0
HCC V28 codes
0
New FY2027
0
Index entries
26

Codes in I30

  1. I30.0
    Acute nonspecific idiopathic pericarditis
    BillableCC
  2. I30.1
    Infective pericarditis
    BillableCC
    Inclusion terms 10, Use additional code 1

    Inclusion terms

    • Pneumococcal pericarditis
    • Pneumopyopericardium
    • Purulent pericarditis
    • Pyopericarditis
    • Pyopericardium
    • Pyopneumopericardium
    • Staphylococcal pericarditis
    • Streptococcal pericarditis
    • Suppurative pericarditis
    • Viral pericarditis

    Use additional code

    • code (B95-B97) to identify infectious agent B95 B97
  3. I30.8
    Other forms of acute pericarditis
    BillableCC
  4. I30.9
    Acute pericarditis, 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 I30

Includes

  • acute mediastinopericarditis
  • acute myopericarditis
  • acute pericardial effusion
  • acute pleuropericarditis
  • acute pneumopericarditis

Excludes1

  • Dressler's syndrome (I24.1) I24.1
  • rheumatic pericarditis (acute) (I01.0) I01.0
  • viral pericarditis due to Coxsackie virus (B33.23) B33.23

Notes that also apply

Chapter 9 instructions (Excludes2 10): printed on the chapter 9 page.

Index entries

  • Pneumopyopericardium → I30.1
  • Pyopericarditis, pyopericardium → I30.1
  • Pyopneumopericardium → I30.1
  • Pericarditis (with decompensation) (with effusion)idiopathic → I30.0
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)pericardial → I30.1
  • Pericarditis (with decompensation) (with effusion)bacterial (acute) (subacute) (with serous or seropurulent effusion) → I30.1
  • Pericarditis (with decompensation) (with effusion)fibrinopurulent → I30.1
  • Pericarditis (with decompensation) (with effusion)infective → I30.1
  • Pericarditis (with decompensation) (with effusion)pneumococcal → I30.1
  • Pericarditis (with decompensation) (with effusion)purulent → I30.1
  • Pericarditis (with decompensation) (with effusion)septic → I30.1
  • Pericarditis (with decompensation) (with effusion)staphylococcal → I30.1
  • Pericarditis (with decompensation) (with effusion)streptococcal → I30.1
  • Pericarditis (with decompensation) (with effusion)suppurative → I30.1
  • Pericarditis (with decompensation) (with effusion)viral → I30.1
  • Pericarditis (with decompensation) (with effusion)fibrinous → I30.8
  • Pericarditis (with decompensation) (with effusion)serofibrinous → I30.8
  • Chylopericardiumacute → I30.9
  • Mediastinopericarditisacute → I30.9
  • Pericarditis (with decompensation) (with effusion)acute (hemorrhagic) (nonrheumatic) (Sicca) → I30.9
  • Pleuropericarditisacute → I30.9
  • Pneumopericarditisacute → I30.9
  • Pericarditis (with decompensation) (with effusion)acute (hemorrhagic) (nonrheumatic) (Sicca)nonspecific → I30.0
  • Pericarditis (with decompensation) (with effusion)acute (hemorrhagic) (nonrheumatic) (Sicca)benign → I30.8
  • Pericarditis (with decompensation) (with effusion)cholesterol (chronic)acute → I30.9
  • Pericarditis (with decompensation) (with effusion)neoplastic (chronic)acute → I30.9

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

Hierarchy