R00 ICD-10-CM Code: Abnormalities of heart beat
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
R00Abnormalities of heart beat
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where R00 sits
- 1
Chapter 18
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
- 2
Section
Symptoms and signs involving the circulatory and respiratory systems (R00-R09)
- 3
Category R00
Abnormalities of heart beat
- 4
Code R00
Abnormalities of heart beat
More specific choices
Codes under R00
R00 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for R00.
Code first
No “code first” instruction is listed for R00.
Use additional code
No “use additional code” instruction is listed for R00.
Excludes1
Conditions that should not be reported together with this code.
- abnormalities originating in the perinatal period (P29.1-)
Excludes2
Conditions not included here that may be reported separately when present.
- specified arrhythmias (I47-I49)
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code R00 mean?
R00 is the FY 2027 U.S. ICD-10-CM code for “Abnormalities of heart beat.”
Is R00 a billable or specific ICD-10-CM code?
No. R00 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is R00 located in ICD-10-CM?
R00 is listed in Chapter 18, Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), within Symptoms and signs involving the circulatory and respiratory systems (R00-R09) (R00–R09), under category R00, Abnormalities of heart beat.
What coding notes are listed for R00?
No inclusion terms are listed for R00 in this reference record. No code-first instruction is listed. Excludes1 notes: abnormalities originating in the perinatal period (P29.1-). Excludes2 notes: specified arrhythmias (I47-I49).
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