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v1.0.0
ICD-10 Guide
ICD-10 CodesR10.31

R10.31

Right lower quadrant pain

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 R10.31 is a billable code used to indicate a diagnosis of right lower quadrant pain.

Key Diagnostic Point:

Right lower quadrant pain (RLQ pain) is a common clinical symptom that can arise from various underlying conditions affecting the abdominal organs located in this region, including the appendix, cecum, right ovary, and portions of the small and large intestines. Patients may present with acute or chronic pain, which can be sharp, dull, or cramp-like in nature. Associated symptoms may include nausea, vomiting, diarrhea, constipation, fever, and changes in appetite. The clinical evaluation often involves a thorough history and physical examination, focusing on the onset, duration, and character of the pain, as well as any accompanying symptoms. Laboratory tests, such as complete blood count (CBC) and urinalysis, may be performed to identify signs of infection or inflammation. Imaging studies, including ultrasound or CT scans, are frequently utilized to visualize the abdominal organs and assist in diagnosing conditions such as appendicitis, ovarian cysts, or diverticulitis. Accurate documentation of the patient's symptoms, clinical findings, and diagnostic tests is essential for proper coding and management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential underlying causes
  • Need for detailed clinical documentation
  • Differentiation from similar abdominal pain codes
  • Potential for acute vs. chronic pain classification

Audit Risk Factors

  • Inadequate documentation of symptoms and clinical findings
  • Failure to specify acute vs. chronic pain
  • Misclassification of pain due to overlapping symptoms
  • Lack of supporting diagnostic tests in the medical record

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Comprehensive history and physical examination, including detailed symptom description and any relevant lab results.

Common Clinical Scenarios

Patients presenting with RLQ pain due to conditions like appendicitis, diverticulitis, or gynecological issues.

Billing Considerations

Ensure that all relevant diagnostic tests and their results are documented to support the diagnosis.

Emergency Medicine

Documentation Requirements

Acute care documentation must include time of onset, severity of pain, and any immediate interventions performed.

Common Clinical Scenarios

Acute RLQ pain presentations, such as appendicitis or ruptured ovarian cysts, requiring rapid assessment and intervention.

Billing Considerations

Document all vital signs and any imaging studies performed to support the diagnosis and treatment plan.

Coding Guidelines

Inclusion Criteria

Use R10.31 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code is used only when the symptom is documented and not as a primary diagnosis unless specified by the provider

Exclusion Criteria

Do NOT use R10.31 When
No specific exclusions found.

Related CPT Codes

99283CPT Code

Emergency department visit, level 3

Clinical Scenario

Used for moderate complexity cases of RLQ pain requiring evaluation and management.

Documentation Requirements

Document the patient's history, examination findings, and any diagnostic tests performed.

Specialty Considerations

Emergency medicine providers should ensure that all acute findings are clearly documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of symptoms like RLQ pain, improving the granularity of data for clinical analysis and reimbursement.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of symptoms like RLQ pain, improving the granularity of data for clinical analysis and reimbursement.

Reimbursement & Billing Impact

reimbursement.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

When should R10.31 be used?

R10.31 should be used when a patient presents with right lower quadrant pain without a specific diagnosis that can be coded. It is important to document the clinical findings and any diagnostic tests performed.