2027 ICD-10-CM Diagnosis Code I47.22Catecholaminergic polymorphic ventricular tachycardia [CPVT]

ICD-10-CM Codes›I00–I99›I30-I5A›I47

ICD-10-CM I47.22
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

I47.22 is a billable ICD-10-CM diagnosis code for catecholaminergic polymorphic ventricular tachycardia [CPVT]. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 308 through 310, 791, 793. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 54 closely related codes.

Code Identity

ICD-10-CM Code
I47.22
Billable Status
Yes — Valid for Submission
Code Describes
Catecholaminergic polymorphic ventricular tachycardia [CPVT]
Short Description
Catecholaminergic polymorphic ventricular tachycardia [CPVT]
Same as the full description in the CMS dataset.
Parent Code
I47.2
Ventricular tachycardia

Code Classification

ChapterI00–I99Diseases of the circulatory system
SectionI30-I5AOther forms of heart disease
CategoryI47Paroxysmal tachycardia
This CodeI47.22Catecholaminergic polymorphic ventricular tachycardia [CPVT]

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to I47.22: its own notes plus those printed at I47 and Chapter 9. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Familial polymorphic ventricular tachycardia [FPVT]

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From I47 Paroxysmal tachycardia applies to 9 codes
  • tachycardia NOS (R00.0)
  • sinoauricular tachycardia NOS (R00.0)
  • sinus [sinusal] tachycardia NOS (R00.0)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 9 (I00-I99) Diseases of the circulatory system applies to 1,433 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Code First

The underlying condition named in the note is sequenced before this code.

From I47 Paroxysmal tachycardia applies to 9 codes
  • tachycardia complicating:
  • abortion or ectopic or molar pregnancy (O00-O07, O08.8)
  • obstetric surgery and procedures (O75.4)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name I47.22, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming I47.22: they are not reported together with it, unless the two conditions are unrelated.

  • R00.0 Tachycardia, unspecified
    paroxysmal tachycardia (I47.-) names I47.-, which includes this code

Excludes2 1

These codes carry an Excludes2 note naming I47.22: its condition is not part of those codes, and both may be reported when the patient has both.

  • R00 Abnormalities of heart beat
    specified arrhythmias (I47-I49) names I47-I49, which includes this code

Code First 2

These codes say to code first a condition named in the note, and I47.22 is one of the conditions named.

  • I5A Non-ischemic myocardial injury (non-traumatic)
    paroxysmal tachycardia (I47.-) names I47.-, which includes this code
  • I21.A1 Myocardial infarction type 2
    paroxysmal tachycardia (I47.0-I47.9) names I47.0-I47.9, which includes this code

Use Additional Code 1

These codes say to use an additional code from the note, and I47.22 is one of the codes named.

  • G90.81 Serotonin syndrome
    ventricular tachycardia (I47.2-) names I47.2-, which includes this code

Code Also 1

These codes say I47.22 may also be needed to fully describe the condition. The note gives no sequencing direction.

  • M35.81 Multisystem inflammatory syndrome
    cardiac arrhythmia (I47-I49.-) names I47-I49, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical InformationClinical

  • Polymorphic Catecholaminergic Ventricular Tachycardia

    an arrhythmogenic disorder of the heart characterized by irregular heart rhythms in response to physical activity, stress, or catecholamine infusion, often transitioning into ventricular fibrillation.

Code History & ChangesHistory

New Code I47.22 was added to the ICD-10-CM code set for FY 2027, effective October 1, 2026.

Replacement I47.22 replaces the following previously assigned code(s):

  • I47.29 - Other ventricular tachycardia
FY 2027AddedAdded to the ICD-10-CM code setEffective October 1, 2026.
FY 2027CurrentRevised in the current code setEffective October 1, 2026 through September 30, 2027.

Questions About I47.22Overview

What is the ICD-10 code for catecholaminergic polymorphic ventricular tachycardia [CPVT]?

The ICD-10-CM code for catecholaminergic polymorphic ventricular tachycardia [CPVT] is I47.22 (sometimes written as I4722). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is I47.22 (Ventricular tachycardia) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report catecholaminergic polymorphic ventricular tachycardia [CPVT] on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does I47.22 group to?

When catecholaminergic polymorphic ventricular tachycardia [CPVT] is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, 309, 310, 308, with relative weights from 0.5686 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.

Is I47.22 a CC or MCC?

CMS lists I47.22 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 54 closely related codes in its exclusion list.

Can I47.22 be reported with R00.0?

Not as a rule. The Excludes1 note at I47, which applies to I47.22, lists "tachycardia NOS (R00.0)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).