October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

I47 Paroxysmal tachycardia

All 9 codes in the I47 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in family

9

Can lead a claim

9

Cannot lead a claim

0

What CMS assigns to I47

All 9 codes group to MMTA - Cardiac and Circulatory. None of the 9 is assigned a comorbidity subgroup. Every code can lead a claim. CMS attaches a code-first note to all 9.

Code first

CMS grouper convention 71, on all 9 codes. Code first:

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

Every code in I47

Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
I47.0Re-entry ventricular arrhythmiaCan lead a claim, code first appliesHNone
I47.1 Supraventricular tachycardia
I47.10Supraventricular tachycardia, unspecifiedCan lead a claim, code first appliesHNone
I47.11Inappropriate sinus tachycardia, so statedCan lead a claim, code first appliesHNone
I47.19Other supraventricular tachycardiaCan lead a claim, code first appliesHNone
I47.2 Ventricular tachycardia
I47.20Ventricular tachycardia, unspecifiedCan lead a claim, code first appliesHNone
I47.21Torsades de pointesCan lead a claim, code first appliesHNone
I47.22Catecholaminergic polymorphic ventricular tachycardia [CPVT]Can lead a claim, code first appliesHNone
I47.29Other ventricular tachycardiaCan lead a claim, code first appliesHNone
I47.9Paroxysmal tachycardia, unspecifiedCan lead a claim, code first appliesHNone

Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.

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