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ICD-10-CM 2027

ICD-10 code for tachycardia

R00.0

Tachycardia, unspecified

✓ Billable / specific

From the official ICD-10-CM alphabetic index entry “Tachycardia”. Page updated September 29, 2026.

About coding tachycardia

The ICD-10-CM code for tachycardia is R00.0 (Tachycardia, unspecified). The official index lists 34 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R00.0.

Within R00, choose R00.0 (Tachycardia, unspecified) only when documentation doesn't support a more specific option: bradycardia, unspecified (R00.1), Palpitations (R00.2), other abnormalities of heart beat (R00.8) and unspecified abnormalities of heart beat (R00.9).

Don't report R00.0 together with the conditions in its Excludes1 note: inappropriate sinus tachycardia, so stated (I47.11), neonatal tachycardia (P29.11) and paroxysmal tachycardia (I47.-).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

More specific tachycardia codes (official index)

  • atrial (paroxysmal) I47.19 — Other supraventricular tachycardia
  • auricular I47.19 — Other supraventricular tachycardia
  • AV nodal re-entry (re-entrant) I47.19 — Other supraventricular tachycardia
  • junctional (paroxysmal) I47.19 — Other supraventricular tachycardia
  • newborn P29.11 — Neonatal tachycardia
  • nodal (paroxysmal) I47.19 — Other supraventricular tachycardia
  • non-paroxysmal AV nodal I45.89 — Other specified conduction disorders
  • paroxysmal (sustained) (nonsustained) I47.9 — Paroxysmal tachycardia, unspecified
  • with sinus bradycardia I49.5 — Sick sinus syndrome
  • atrial (PAT) I47.19 — Other supraventricular tachycardia
  • atrioventricular (AV) (re-entrant) I47.19 — Other supraventricular tachycardia
  • psychogenic F54 — Psychological and behavioral factors associated with disorders or diseases classified elsewhere
  • junctional I47.19 — Other supraventricular tachycardia
  • ectopic I47.19 — Other supraventricular tachycardia
  • nodal I47.19 — Other supraventricular tachycardia
  • psychogenic (atrial) (supraventricular) (ventricular) F54 — Psychological and behavioral factors associated with disorders or diseases classified elsewhere
  • supraventricular (sustained) I47.10 — Supraventricular tachycardia, unspecified
  • psychogenic F54 — Psychological and behavioral factors associated with disorders or diseases classified elsewhere
  • ventricular I47.20 — Ventricular tachycardia, unspecified
  • catecholaminergic polymorphic (CPVT) I47.22 — Catecholaminergic polymorphic ventricular tachycardia [CPVT]
  • familial polymorphic (FPVT) I47.22 — Catecholaminergic polymorphic ventricular tachycardia [CPVT]
  • psychogenic F54 — Psychological and behavioral factors associated with disorders or diseases classified elsewhere
  • specified type NEC I47.29 — Other ventricular tachycardia
  • psychogenic F45.8 — Other somatoform disorders
  • sick sinus I49.5 — Sick sinus syndrome
  • sinoauricular NOS R00.0 — Tachycardia, unspecified
  • paroxysmal I47.19 — Other supraventricular tachycardia
  • sinus [sinusal] NOS R00.0 — Tachycardia, unspecified
  • inappropriate, so stated (IST) I47.11 — Inappropriate sinus tachycardia, so stated
  • paroxysmal I47.19 — Other supraventricular tachycardia
  • supraventricular I47.10 — Supraventricular tachycardia, unspecified
  • ventricular (paroxysmal) (sustained) I47.20 — Ventricular tachycardia, unspecified
  • psychogenic F54 — Psychological and behavioral factors associated with disorders or diseases classified elsewhere
  • specified type NEC I47.29 — Other ventricular tachycardia

Don't confuse with (Excludes1 for R00.0)

  • inappropriate sinus tachycardia, so stated (I47.11)
  • neonatal tachycardia (P29.11)
  • paroxysmal tachycardia (I47.-)

Common questions about tachycardia ICD-10 codes

What is the ICD-10 code for tachycardia?

R00.0 — Tachycardia, unspecified. More specific codes apply when the documentation supports them: I47.19, I47.19, I47.19, I47.19 and others below.

What is the ICD-10 code for atrial tachycardia?

I47.19 — Other supraventricular tachycardia.

What is the ICD-10 code for auricular tachycardia?

I47.19 — Other supraventricular tachycardia.

What is the ICD-10 code for av nodal re-entry tachycardia?

I47.19 — Other supraventricular tachycardia.

What is the ICD-10 code for junctional tachycardia?

I47.19 — Other supraventricular tachycardia.

What is the ICD-10 code for newborn tachycardia?

P29.11 — Neonatal tachycardia.

What is the ICD-10 code for nodal tachycardia?

I47.19 — Other supraventricular tachycardia.

Is R00.0 billable?

Yes. R00.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can R00.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict R00.0 as a principal diagnosis.

Is R00.0 a CC or MCC?

No. R00.0 is neither a CC nor an MCC under MS-DRG v44.0.