DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

I02 Rheumatic chorea

  • Header · not billable

I02 is not billable. The category heads 2 billable codes in FY2027: the 2 codes directly below it.

Index → code

  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)minor → I02.9
  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)Sydenham's → I02.9
  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)rheumatic (chronic) → I02.9

Where it sits

  1. Chapter 9 Diseases of the circulatory system (I00-I99)
  2. I00-I02 Acute rheumatic fever (I00-I02)
  3. I02 Rheumatic chorea
Billable codes
2
Subdivisions
2
CC / MCC codes
2 / 0
HCC V28 codes
0
New FY2027
0
Index entries
39

Codes in I02

  1. I02.0
    Rheumatic chorea with heart involvement
    BillableCC
    Inclusion terms 2

    Inclusion terms

    • Chorea NOS with heart involvement
    • Rheumatic chorea with heart involvement of any type classifiable under I01.- I01
  2. I02.9
    Rheumatic chorea without heart involvement
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Rheumatic chorea 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

At I02

Includes

  • Sydenham's chorea

Excludes1

  • chorea NOS (G25.5) G25.5
  • Huntington's chorea (G10) G10

Notes that also apply

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

Index entries

  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)minor → I02.9
  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)rheumatic (chronic) → I02.9
  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)Sydenham's → I02.9
  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)withheart involvement → I02.0
  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)minorwith heart involvement → I02.0
  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)rheumatic (chronic)with heart involvement → I02.0
  • Pericarditis (with decompensation) (with effusion)acute (hemorrhagic) (nonrheumatic) (Sicca)with chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Pericarditis (with decompensation) (with effusion)rheumatic (active) (acute) (with effusion) (with pneumonia)with chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Rheumatic (acute) (subacute)myocarditis (chronic) (inactive) (with chorea)with chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Rheumatic (acute) (subacute)pancarditis, acutewith chorea (acute (rheumatic) Sydenham's) → I02.0
  • Rheumatic (acute) (subacute)pericarditis (active) (acute) (with effusion) (with pneumonia)with chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)rheumatic (active) (acute) (chronic) (subacute)with central nervous system involvement → I02.9
  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)withheart involvementactive or acute (conditions in I01-) → I02.0
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)acute or subacuterheumatic (aortic) (mitral) (pulmonary) (tricuspid)with chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)mitral (chronic) (double) (fibroid) (heart) (inactive) (valve) (with chorea)active or acutewith chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)rheumatic (chronic) (inactive) (with chorea)active or acute (aortic) (mitral) (pulmonary) (tricuspid)with chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)tricuspid (chronic) (heart) (inactive) (rheumatic) (valve) (with chorea)active or acutewith chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Myocarditis (with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile)activerheumaticwith chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Myocarditis (with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile)acute or subacute (interstitial)rheumaticwith chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Myocarditis (with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile)rheumatic (chronic) (inactive) (with chorea)active or acutewith chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Pericarditis (with decompensation) (with effusion)acute (hemorrhagic) (nonrheumatic) (Sicca)rheumaticwith chorea (acute) (Sydenham's) → I02.0
  • Stenosis, stenotic (cicatricial)mitral (chronic) (inactive) (valve)active or acutewith rheumatic or Sydenham's chorea → I02.0
  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)withheart involvementrheumatic → I02.9
  • Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic)withheart involvementrheumaticwith valvular disorder → I02.0
  • Degeneration, degenerativemyocardial, myocardium (fatty) (hyaline) (senile)with rheumatic fever (conditions in I00)active, acute or subacutewith chorea → I02.0
  • Disease, diseasedheart (organic)rheumatic (chronic) (inactive) (old) (quiescent) (with chorea)active or acutewith chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)aortic (heart) (nonrheumatic) (valve)rheumaticactive or acutewith chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)pulmonary (chronic) (heart) (valve)acute or subacuterheumaticwith chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)pulmonary (chronic) (heart) (valve)rheumatic (chronic) (inactive) (with chorea)active or acutewith chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Hypertrophy, hypertrophiccardiac (chronic) (idiopathic)rheumatic (with chorea)active or acutewith chorea → I02.0
  • Insufficiency, insufficientmitral (valve)rheumaticactive or acutewith chorea, rheumatic (Sydenham's) → I02.0
  • Disease, diseasedheart (organic)withrheumatic fever (conditions in I00)activewith chorea → I02.0
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)aortic (heart) (nonrheumatic) (valve)withmitral diseaseactive or acutewith chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)aortic (heart) (nonrheumatic) (valve)rheumaticwith mitral diseaseactive or acutewith chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Endocarditis (chronic) (marantic) (nonbacterial) (thrombotic) (valvular)mitral (chronic) (double) (fibroid) (heart) (inactive) (valve) (with chorea)withaortic (valve) diseaseactive or acutewith chorea (acute) (rheumatic) (Sydenham's) → I02.0
  • Failure, failedheart (acute) (senile) (sudden)congestiverheumatic (chronic) (inactive) (with chorea)active or acutewith chorea → I02.0
  • Failure, failedventricularleftwith rheumatic fever (conditions in I00)activewith chorea → I02.0
  • Failure, failedventricularleftrheumatic (chronic) (inactive) (with chorea)active or acutewith chorea → I02.0
  • Insufficiency, insufficientmyocardial, myocardium (with arteriosclerosis)withrheumatic fever (conditions in I00)active, acute or subacutewith chorea → I02.0

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Hierarchy