All ICD10 Codes

R00

Non-Billable
ChapterR00–R99
Rankcategory
Official Description

Abnormalities of heart beat

Use a more specific code (5 billable)
R00.0Tachycardia, unspecifiedR00.1Bradycardia, unspecifiedR00.2PalpitationsR00.8Other abnormalities of heart beatR00.9Unspecified abnormalities of heart beat
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (R00-R99).

CH18 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • abnormal findings on antenatal screening of mother (O28.-)
  • certain conditions originating in the perinatal period (P04-P96)
  • signs and symptoms classified in the body system chapters
  • signs and symptoms of breast (N63, N64.5)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • abnormalities originating in the perinatal period (P29.1-)
Excludes2(Not included here. Code separately if applicable.)

Clinical Hierarchy

BillableHas subcodes
CH18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
R00-R09Symptoms and signs involving the circulatory and respiratory systems (R00-R09)
R00Abnormalities of heart beatNot billable
R00.0Tachycardia, unspecifiedBillable
R00.1Bradycardia, unspecifiedBillable
R00.2PalpitationsBillable
R00.8Other abnormalities of heart beatBillable
R00.9Unspecified abnormalities of heart beatBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to R00:

chapterCH18
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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