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ICD-10 Guide
ICD-10 CodesR19.31

R19.31

Right upper quadrant abdominal rigidity

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

Code Description

ICD-10 R19.31 is a billable code used to indicate a diagnosis of right upper quadrant abdominal rigidity.

Key Diagnostic Point:

Right upper quadrant abdominal rigidity refers to a clinical finding characterized by increased tension and resistance in the abdominal muscles located in the right upper quadrant (RUQ) of the abdomen. This rigidity can be a sign of underlying pathology, often indicating irritation or inflammation of the abdominal organs, such as the liver, gallbladder, or pancreas. It may present as a protective mechanism in response to pain or inflammation, leading to involuntary muscle contraction. Common causes include acute cholecystitis, liver disease, pancreatitis, or perforated viscus. The presence of rigidity may be accompanied by other symptoms such as tenderness, guarding, or rebound tenderness, which can help clinicians assess the severity of the underlying condition. Laboratory findings may include elevated liver enzymes, bilirubin levels, or inflammatory markers, depending on the etiology. Accurate identification and documentation of RUQ rigidity are crucial for appropriate diagnosis and management, as it can significantly influence treatment decisions and patient outcomes.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and underlying causes
  • Need for thorough documentation of associated symptoms
  • Differentiation from other abdominal rigidity codes
  • Potential overlap with other abdominal conditions

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to link symptoms to a definitive diagnosis
  • Misinterpretation of abdominal rigidity as a standalone diagnosis
  • Lack of clarity on the underlying cause of rigidity

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed documentation of the patient's history, physical examination findings, and any diagnostic tests performed.

Common Clinical Scenarios

Patients presenting with RUQ pain, jaundice, or elevated liver enzymes.

Billing Considerations

Ensure that the documentation clearly indicates the presence of rigidity and any associated symptoms to support the diagnosis.

Emergency Medicine

Documentation Requirements

Acute care documentation must include a thorough assessment of abdominal findings, vital signs, and any immediate interventions.

Common Clinical Scenarios

Patients with acute abdominal pain, suspected gallbladder disease, or pancreatitis.

Billing Considerations

Rapid assessment and documentation are critical; ensure that the presence of rigidity is noted in the context of acute presentations.

Coding Guidelines

Inclusion Criteria

Use R19.31 When
  • Follow official ICD
  • CM coding guidelines, ensuring that the code is used only when abdominal rigidity is specifically noted and linked to a clinical diagnosis
  • Coders should reference the patient's medical record for comprehensive documentation

Exclusion Criteria

Do NOT use R19.31 When
No specific exclusions found.

Related CPT Codes

99283CPT Code

Emergency department visit, moderate complexity

Clinical Scenario

Used when a patient presents with RUQ rigidity and requires moderate complexity evaluation.

Documentation Requirements

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

Specialty Considerations

Emergency medicine providers should ensure that the evaluation reflects the complexity of the case.

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 RUQ rigidity, improving the granularity of data for clinical analysis and reimbursement. Coders must be diligent in documenting the clinical context to support the use of this specific code.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of symptoms like RUQ rigidity, improving the granularity of data for clinical analysis and reimbursement. Coders must be diligent in documenting the clinical context to support the use of this specific code.

Reimbursement & Billing Impact

reimbursement. Coders must be diligent in documenting the clinical context to support the use of this specific code.

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

What is the significance of documenting RUQ rigidity?

Documenting RUQ rigidity is crucial as it can indicate serious underlying conditions that require immediate attention. Accurate documentation supports appropriate coding and ensures that the clinical picture is clear for treatment decisions.