MCMCB Pro
I47

I47Paroxysmal tachycardia

Non-billable headerICD-10-CM

I47 is a non-billable header ICD-10-CM code for paroxysmal tachycardia. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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

Code first

The underlying condition must be sequenced before this code.

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

Other codes that can never be billed with I47

These codes carry an Excludes1 note pointing at I47. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I47 alone.

  • R00.0Tachycardia, unspecified

Risk adjustment

I47 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead I47

4 child codes. Green means billable.

Questions about I47

Is I47 a billable ICD-10-CM code?
No. I47 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I47 sit in the tabular list?
Diseases of the circulatory system (I00-I99), in the block Other forms of heart disease (I30-I5A).
What cannot be coded together with I47?
I47 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.