I47.9 Paroxysmal tachycardia, unspecified

BillableCMS-HCC V28: HCC 238Chapter 9

Check coverage with this diagnosis

Instructional notes

Chapter 9

Excludes2Not included here: the patient may have both; report both when both are present.

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.-)

I47

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

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

Code firstSequence the underlying condition first.

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

This code

Inclusion terms

Bouveret (-Hoffman) syndrome

Chapter 9: Diseases of the circulatory system · I30-I5A Other forms of heart disease (I30-I5A)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.