R00-R99
Medium Complexity
Symptoms and signs involving the circulatory and respiratory systems
Primary Specialty: Emergency Medicine
Last Updated: 2025-09-10
ICD-10 Codes (200)
195 billable0 category headers
R01Billable
R01.0Billable
R01.1Billable
R01.2Billable
R03Billable
R03.0Billable
R03.1Billable
R04R04.0Billable
R04.1Billable
R04.2Billable
R04.8Billable
R04.81Billable
R04.89Billable
R04.9Billable
R05Billable
R05.1Billable
R05.2Billable
R05.3Billable
R05.4Billable
R05.8Billable
R05.9Billable
R06R06.0Billable
R06.00Billable
R06.01Billable
R06.02Billable
R06.03Billable
R06.09Billable
R06.1Billable
R06.2Billable
R06.3Billable
R06.4Billable
R06.5Billable
R06.6Billable
R06.7Billable
R06.8Billable
R06.81Billable
R06.82Billable
R06.83Billable
R06.89Billable
R06.9Billable
R07Billable
R07.0Billable
R07.1Billable
R07.2Billable
R07.8Billable
R07.81Billable
R07.82Billable
R07.89Billable
R07.9Billable
R09R09.0Billable
R09.01Billable
R09.02Billable
R09.1Billable
R09.2Billable
R09.3Billable
R09.8Billable
R09.81Billable
R09.82Billable
R09.89Billable
R10R10.0Billable
R10.1Billable
R10.10Billable
R10.11Billable
R10.12Billable
R10.13Billable
R10.2Billable
R10.3Billable
R10.30Billable
R10.31Billable
R10.32Billable
R10.33Billable
R10.8Billable
R10.81Billable
R10.811Billable
R10.812Billable
R10.813Billable
R10.814Billable
R10.815Billable
R10.816Billable
R10.817Billable
R10.819Billable
R10.82Billable
R10.821Billable
R10.822Billable
R10.823Billable
R10.824Billable
R10.825Billable
R10.826Billable
R10.827Billable
R10.829Billable
R10.83Billable
R10.84Billable
R10.9Billable
R11Billable
R11.0Billable
R11.1Billable
R11.10Billable
R11.11Billable
R11.12Billable
R11.13Billable
R11.14Billable
R11.15Billable
R11.2Billable
R12Billable
R13R13.0Billable
R13.1Billable
R13.10Billable
R13.11Billable
R13.12Billable
R13.13Billable
R13.14Billable
R13.19Billable
R14Billable
R14.0Billable
R14.1Billable
R14.2Billable
R14.3Billable
R15Billable
R15.0Billable
R15.1Billable
R15.2Billable
R15.9Billable
R16Billable
R16.0Billable
R16.1Billable
R16.2Billable
R17Billable
R18Billable
R18.0Billable
R18.8Billable
R19Billable
R19.0Billable
R19.00Billable
R19.01Billable
R19.02Billable
R19.03Billable
R19.04Billable
R19.05Billable
R19.06Billable
R19.07Billable
R19.09Billable
R19.1Billable
R19.11Billable
R19.12Billable
R19.15Billable
R19.2Billable
R19.3Billable
R19.30Billable
R19.31Billable
R19.32Billable
R19.33Billable
R19.34Billable
R19.35Billable
R19.36Billable
R19.37Billable
R19.4Billable
R19.5Billable
R19.6Billable
R19.7Billable
R19.8Billable
R20Billable
R20.0Billable
R20.1Billable
R20.2Billable
R20.3Billable
R20.8Billable
R20.9Billable
R21Billable
R22Billable
R22.0Billable
R22.1Billable
R22.2Billable
R22.3Billable
R22.30Billable
R22.31Billable
R22.32Billable
R22.33Billable
R22.4Billable
R22.40Billable
R22.41Billable
R22.42Billable
R22.43Billable
R22.9Billable
R23Billable
R23.0Billable
R23.1Billable
R23.2Billable
R23.3Billable
R23.4Billable
R23.8Billable
R23.9Billable
R25Billable
R25.0Billable
R25.1Billable
R25.2Billable
Updates & Changes
FY 2026 Updates
Current Year
Deleted Codes
No codes deleted in this range for FY 2026
No significant changes for FY 2026
This range maintains stability with current coding practices
Historical Changes
- •FY 2025: Routine maintenance updates with minor terminology clarifications
- •FY 2024: Enhanced specificity requirements for certain code ranges
- •FY 2023: Updated documentation guidelines for improved clarity
Upcoming Changes
- •Proposed updates pending review by Coordination and Maintenance Committee
- •Under consideration: Enhanced digital health integration codes
Implementation Guidance
- •Review all FY 2026 updates for R00-R99 codes before implementation
- •Always verify the most current codes in the ICD-10-CM manual
- •Ensure clinical documentation supports the selected diagnosis codes
- +3 more guidance items...
Range Overview
high priority
The ICD-10 code range R00-R99 encompasses a wide variety of symptoms and signs involving the circulatory and respiratory systems. These codes are used to document symptoms and clinical signs that are not associated with a definitive diagnosis. This range includes codes for abnormalities of heart beat, breath sounds, and blood pressure, as well as other nonspecific symptoms related to the circulatory and respiratory systems.
Key Usage Points:
- •These codes are used when a definitive diagnosis has not been established.
- •The codes can be used in any healthcare setting, not just inpatient.
- •R00-R99 codes should be used in conjunction with other codes to provide a complete clinical picture.
- •These codes can be used multiple times for the same patient if the symptoms recur.
- •Documentation should be as specific as possible to select the most accurate code.
Coding Guidelines
When to Use:
- ✓When a patient presents with chest pain but no definitive diagnosis is made.
- ✓When a patient has abnormal findings on diagnostic imaging of the circulatory or respiratory system, but no definitive diagnosis is made.
- ✓When a patient has nonspecific symptoms such as shortness of breath or palpitations.
- ✓When a patient has abnormal heart sounds detected on physical examination.
When NOT to Use:
- ✗When a definitive diagnosis has been made.
- ✗When the symptoms are clearly attributable to a known condition.
- ✗When the symptoms are part of the normal recovery process after surgery or other treatment.
- ✗When the symptoms are intentionally induced as part of a therapeutic procedure.
Code Exclusions
Always verify exclusions by checking the official ICD-10 guidelines and the specific code description.
Documentation Requirements
Documentation for R00-R99 codes should be detailed and specific, describing the exact nature of the symptoms or signs, their severity, duration, and any factors that exacerbate or alleviate them. The documentation should also include any relevant findings from physical examination or diagnostic tests.
Clinical Information:
- •Description of the symptom or sign
- •Severity of the symptom or sign
- •Duration of the symptom or sign
- •Factors that exacerbate or alleviate the symptom or sign
- •Relevant findings from physical examination or diagnostic tests
Supporting Evidence:
- •Clinical notes
- •Diagnostic test results
- •Imaging reports
- •Consultation notes
Good Documentation Example:
Patient presents with severe chest pain of sudden onset, lasting for 30 minutes, not relieved by rest. Physical examination reveals tachycardia. ECG shows ST segment elevation.
Poor Documentation Example:
Patient has chest pain.
Common Documentation Errors:
- âš Not documenting the severity, duration, or nature of the symptom or sign
- âš Not including relevant findings from physical examination or diagnostic tests
- âš Using nonspecific codes when more specific codes are available
- âš Not updating the code when a definitive diagnosis is made
Range Statistics
8
Total Codes
195
Billable
Complexity:
Medium
Primary Use:Clinical Documentation
Chapter:18
Coding Complexity
Medium
Complexity Rating
R00-R99 codes have a medium level of complexity because they require detailed documentation and careful code selection. The coder must also be aware of the need to update the code when a definitive diagnosis is made, and to avoid using these codes when the symptoms are attributable to a known condition.
Key Factors:
- â–¸The need to choose the most specific code based on detailed documentation
- â–¸The need to update the code when a definitive diagnosis is made
- â–¸The need to use multiple codes to fully describe the clinical picture
- â–¸The need to avoid using these codes when the symptoms are attributable to a known condition
Specialty Focus
R00-R99 codes are used across many specialties, but are particularly relevant in emergency medicine, cardiology, and pulmonology. These specialties often encounter patients with undiagnosed symptoms related to the circulatory and respiratory systems.
Primary Specialties:
Emergency Medicine
40%
Cardiology
30%
Pulmonology
30%
Clinical Scenarios:
- • A patient presents to the emergency department with sudden onset chest pain and shortness of breath.
- • A patient in a cardiology clinic has an abnormal heart rhythm detected on ECG, but no definitive diagnosis is made.
- • A patient in a pulmonology clinic has abnormal breath sounds on auscultation, but no definitive diagnosis is made.
- • A patient has nonspecific symptoms such as fatigue and dizziness, which may be related to the circulatory or respiratory system.
Resources & References
There are many resources available to help with the coding of R00-R99 codes. These include the official ICD-10 guidelines, clinical reference books, and educational materials from professional coding organizations.
Official Guidelines:
- ICD-10-CM Official Guidelines for Coding and Reporting
- World Health Organization: International Classification of Diseases (ICD)
- Centers for Disease Control and Prevention: ICD-10
Clinical References:
- Harrison's Principles of Internal Medicine
- The Merck Manual of Diagnosis and Therapy
Educational Materials:
- American Health Information Management Association (AHIMA): ICD-10 Training
- American Academy of Professional Coders (AAPC): ICD-10 Coding Training
Frequently Asked Questions
Can R00-R99 codes be used for symptoms related to conditions in other chapters of the ICD-10?
No, R00-R99 codes should not be used for symptoms that are clearly attributable to conditions that have their own codes in other chapters of the ICD-10.