All ICD10 Codes

I46

Non-Billable
ChapterI00–I99
Rankcategory
Official Description

Cardiac arrest

Use a more specific code (3 billable)
I46.2Cardiac arrest due to underlying cardiac conditionI46.8Cardiac arrest due to other underlying conditionI46.9Cardiac arrest, cause unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 9: Diseases of the Circulatory System (I00-I99).

CH9 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • 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.-)

Instructional Notes

Excludes2(Not included here. Code separately if applicable.)
  • cardiogenic shock (R57.0)

Clinical Hierarchy

BillableHas subcodes
CH9Diseases of the circulatory system (I00-I99)
I30-I5AOther forms of heart disease (I30-I5A)
I46Cardiac arrestNot billable
I46.2Cardiac arrest due to underlying cardiac conditionBillable
I46.8Cardiac arrest due to other underlying conditionBillable
I46.9Cardiac arrest, cause unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I46:

chapterCH9
Diseases of the circulatory system (I00-I99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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