DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

I47 Paroxysmal tachycardia

  • Header · not billable

I47 is not billable. The category heads 9 billable codes in FY2027, grouped under 4 subdivisions.

FY2027 changes under I47: 1 billable code added. All FY2027 changes.

Index → code

  • Torsades de pointes → I47.21
  • Hoffmann-Bouveret syndrome → I47.9
  • PAT (paroxysmal atrial tachycardia) → I47.19

Where it sits

  1. Chapter 9 Diseases of the circulatory system (I00-I99)
  2. I30-I5A Other forms of heart disease (I30-I5A)
  3. I47 Paroxysmal tachycardia
Billable codes
9
Subdivisions
4
CC / MCC codes
8 / 0
HCC V28 codes
5
New FY2027
1
Index entries
36

Codes in I47

  1. I47.0
    Re-entry ventricular arrhythmia
    BillableCC238
  2. I47.1
    Supraventricular tachycardia
    Header
  3. I47.10
    Supraventricular tachycardia, unspecified
    BillableCC
  4. I47.11
    Inappropriate sinus tachycardia, so stated
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • IST
  5. I47.19
    Other supraventricular tachycardia
    BillableCC
    Inclusion terms 5

    Inclusion terms

    • Atrial (paroxysmal) tachycardia
    • Atrioventricular [AV] (paroxysmal) tachycardia
    • Atrioventricular re-entrant (nodal) tachycardia [AVNRT] [AVRT]
    • Junctional (paroxysmal) tachycardia
    • Nodal (paroxysmal) tachycardia
  6. I47.2
    Ventricular tachycardia
    Header
  7. I47.20
    Ventricular tachycardia, unspecified
    BillableCC238
  8. I47.21
    Torsades de pointes
    BillableCC238
    Use additional code 1, Code also 1

    Use additional code

    • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) T36 T50

    Code also

    • , if applicable, long QT syndrome (I45.81) I45.81
  9. I47.22
    Catecholaminergic polymorphic ventricular tachycardia [CPVT] New FY2027
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Familial polymorphic ventricular tachycardia [FPVT]
  10. I47.29
    Other ventricular tachycardia
    BillableCC238
  11. I47.9
    Paroxysmal tachycardia, unspecified
    Billable238
    Inclusion terms 1

    Inclusion terms

    • Bouveret (-Hoffman) syndrome

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 I47

Excludes1

  • tachycardia NOS (R00.0) R00.0
  • sinoauricular tachycardia NOS (R00.0) R00.0
  • sinus [sinusal] tachycardia NOS (R00.0) R00.0

Code first

  • tachycardia complicating:
  • abortion or ectopic or molar pregnancy (O00-O07, O08.8) O00 O07 O08.8
  • obstetric surgery and procedures (O75.4) O75.4

Notes that also apply

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

Index entries

  • IST (inappropriate sinus tachycardia, so stated) → I47.11
  • AVNRT (atrioventricular nodal re-entrant tachycardia) → I47.19
  • AVRT (atrioventricular nodal re-entrant tachycardia) → I47.19
  • PAT (paroxysmal atrial tachycardia) → I47.19
  • Torsades de pointes → I47.21
  • CPVT (catecholaminergic polymorphic ventricular tachycardia) → I47.22
  • FPVT (familial polymorphic ventricular tachycardia) → I47.22
  • Bouveret (-Hoffmann) syndrome (paroxysmal tachycardia) → I47.9
  • Hoffmann-Bouveret syndrome → I47.9
  • Arrhythmia (auricle)(cardiac)(juvenile)(nodal)(reflex)(supraventricular)(transitory)(ventricle)ventricular re-entry → I47.0
  • Tachycardiasupraventricular → I47.10
  • Inappropriatesinus tachycardia, so stated (IST) → I47.11
  • Tachycardiaatrial (paroxysmal) → I47.19
  • Tachycardiaauricular → I47.19
  • TachycardiaAV nodal re-entry (re-entrant) → I47.19
  • Tachycardiajunctional (paroxysmal) → I47.19
  • Tachycardianodal (paroxysmal) → I47.19
  • Tachycardiaventricular (paroxysmal) (sustained) → I47.20
  • Disease, diseasedBouveret (-Hoffmann) (paroxysmal tachycardia) → I47.9
  • SyndromeBouveret (-Hoffman) → I47.9
  • Tachycardiaparoxysmal (sustained) (nonsustained) → I47.9
  • Tachycardiaparoxysmal (sustained) (nonsustained)supraventricular (sustained) → I47.10
  • Tachycardiasinus [sinusal] NOSinappropriate, so stated (IST) → I47.11
  • Sinustachycardiaparoxysmal → I47.19
  • Tachycardiaparoxysmal (sustained) (nonsustained)atrial (PAT) → I47.19
  • Tachycardiaparoxysmal (sustained) (nonsustained)atrioventricular (AV) (re-entrant) → I47.19
  • Tachycardiaparoxysmal (sustained) (nonsustained)junctional → I47.19
  • Tachycardiaparoxysmal (sustained) (nonsustained)nodal → I47.19
  • Tachycardiasinoauricular NOSparoxysmal → I47.19
  • Tachycardiasinus [sinusal] NOSparoxysmal → I47.19
  • Tachycardiaparoxysmal (sustained) (nonsustained)ventricular → I47.20
  • Tachycardiaventricular (paroxysmal) (sustained)specified type NEC → I47.29
  • Tachycardiaparoxysmal (sustained) (nonsustained)junctionalectopic → I47.19
  • Tachycardiaparoxysmal (sustained) (nonsustained)ventricularcatecholaminergic polymorphic (CPVT) → I47.22
  • Tachycardiaparoxysmal (sustained) (nonsustained)ventricularfamilial polymorphic (FPVT) → I47.22
  • Tachycardiaparoxysmal (sustained) (nonsustained)ventricularspecified type NEC → I47.29

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

Hierarchy