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v1.0.0
ICD-10 Guide
ICD-10 CodesR19.3

R19.3

Abdominal rigidity

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

Code Description

ICD-10 R19.3 is a billable code used to indicate a diagnosis of abdominal rigidity.

Key Diagnostic Point:

Abdominal rigidity is a clinical sign characterized by involuntary muscle contraction in the abdominal wall, leading to a stiffened abdomen that may be palpated during a physical examination. This rigidity can indicate underlying pathology, often associated with acute abdominal conditions such as peritonitis, intestinal obstruction, or intra-abdominal hemorrhage. The presence of abdominal rigidity is typically assessed during a physical examination, where the clinician notes the degree of stiffness and any associated symptoms such as pain, tenderness, or distension. It is crucial to differentiate between voluntary guarding, where the patient tenses their abdominal muscles in response to pain, and involuntary rigidity, which suggests a more serious underlying condition. Common causes of abdominal rigidity include acute appendicitis, perforated viscus, pancreatitis, and diverticulitis. The diagnostic approach often involves imaging studies such as ultrasound or CT scans, alongside laboratory tests to identify any infectious or inflammatory processes. Accurate documentation of the clinical findings, associated symptoms, and any diagnostic tests performed is essential for proper coding and management of the patient's condition.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between voluntary guarding and involuntary rigidity
  • Identifying underlying causes that may not be immediately apparent
  • Need for comprehensive documentation of associated symptoms
  • Potential for multiple diagnoses related to abdominal symptoms

Audit Risk Factors

  • Inadequate documentation of the physical examination findings
  • Failure to specify the underlying cause of rigidity
  • Misclassification of abdominal rigidity as a symptom rather than a sign
  • Inconsistent coding practices across different providers

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed documentation of the patient's history, physical examination findings, and any diagnostic tests performed is essential. Include descriptions of abdominal tenderness, distension, and any associated symptoms.

Common Clinical Scenarios

Patients presenting with acute abdominal pain, suspected appendicitis, or diverticulitis.

Billing Considerations

Consider the patient's overall clinical picture and any comorbidities that may influence the diagnosis.

Emergency Medicine

Documentation Requirements

Acute care documentation must include time-sensitive assessments, vital signs, and immediate interventions taken. Document any imaging or lab results promptly.

Common Clinical Scenarios

Patients presenting with acute abdominal emergencies, such as perforated ulcers or bowel obstructions.

Billing Considerations

Rapid assessment and documentation are critical in emergency settings to ensure timely diagnosis and treatment.

Coding Guidelines

Inclusion Criteria

Use R19.3 When
  • Follow official ICD
  • CM coding guidelines, ensuring that the code is used only when abdominal rigidity is documented as a clinical finding
  • It should not be used as a primary diagnosis unless it is the main reason for the encounter

Exclusion Criteria

Do NOT use R19.3 When
No specific exclusions found.

Related CPT Codes

99283CPT Code

Emergency department visit, moderate complexity

Clinical Scenario

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

Documentation Requirements

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

Specialty Considerations

Emergency medicine providers should ensure timely documentation to support the complexity of care.

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 abdominal rigidity, improving the granularity of data for clinical and billing purposes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of symptoms like abdominal rigidity, improving the granularity of data for clinical and billing purposes.

Reimbursement & Billing Impact

billing purposes.

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 abdominal rigidity in clinical practice?

Abdominal rigidity is a critical sign that may indicate serious underlying conditions requiring immediate medical attention, such as peritonitis or bowel obstruction.