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v1.0.0
ICD-10 Guide
ICD-10 CodesR19.30

R19.30

Abdominal rigidity, unspecified site

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

Code Description

ICD-10 R19.30 is a billable code used to indicate a diagnosis of abdominal rigidity, unspecified site.

Key Diagnostic Point:

Abdominal rigidity is a clinical sign characterized by involuntary muscle contraction in the abdominal wall, leading to a stiffened abdomen. This rigidity can be a response to various underlying conditions, often indicating irritation or inflammation of the peritoneum. It is commonly assessed during a physical examination, where the clinician notes the resistance to palpation. Abdominal rigidity can be associated with acute abdominal conditions such as appendicitis, peritonitis, or bowel obstruction. It may also arise from less acute issues like pancreatitis or diverticulitis. The absence of a specified site in this code indicates that the rigidity is generalized rather than localized, which can complicate the diagnostic process. Clinicians must consider the patient's history, presenting symptoms, and any accompanying signs to determine the underlying cause. Laboratory tests, imaging studies, and further clinical evaluation are often necessary to establish a definitive diagnosis and guide treatment.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and underlying causes
  • Need for thorough documentation to support the diagnosis
  • Potential overlap with other abdominal conditions
  • Requirement for additional diagnostic tests to confirm etiology

Audit Risk Factors

  • Insufficient documentation of clinical findings
  • Failure to specify the underlying cause of rigidity
  • Inconsistent coding practices across providers
  • Lack of correlation between symptoms and diagnosis

Specialty Focus

Medical Specialties

Internal Medicine

Documentation Requirements

Detailed patient history, physical examination findings, and any diagnostic tests performed must be documented to support the diagnosis of abdominal rigidity.

Common Clinical Scenarios

Patients presenting with abdominal pain, fever, and rigidity may indicate an acute abdomen requiring further evaluation.

Billing Considerations

Consideration of comorbid conditions that may contribute to abdominal rigidity is essential for accurate coding.

Emergency Medicine

Documentation Requirements

Acute care documentation must include time of onset, associated symptoms, and any immediate interventions performed.

Common Clinical Scenarios

Patients presenting with acute abdominal pain and rigidity may require rapid assessment and intervention.

Billing Considerations

Emergency settings may necessitate expedited documentation to ensure accurate coding and billing.

Coding Guidelines

Inclusion Criteria

Use R19.30 When
  • According to ICD
  • CM guidelines, R19
  • 30 should be used when abdominal rigidity is observed but not specified to a particular site
  • Coders must ensure that the clinical documentation supports the use of this code and that it is not used inappropriately when a more specific code is available

Exclusion Criteria

Do NOT use R19.30 When
No specific exclusions found.

Related CPT Codes

99283CPT Code

Emergency department visit, moderate severity

Clinical Scenario

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

Documentation Requirements

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

Specialty Considerations

Emergency medicine providers should ensure timely documentation to support the visit level.

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 analysis and reimbursement. However, it also requires coders to be more diligent in documentation and coding practices.

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 analysis and reimbursement. However, it also requires coders to be more diligent in documentation and coding practices.

Reimbursement & Billing Impact

reimbursement. However, it also requires coders to be more diligent in documentation and coding practices.

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 I use R19.30?

Use R19.30 when abdominal rigidity is observed but not specified to a particular site, and ensure that the clinical documentation supports this diagnosis.

What are the common causes of abdominal rigidity?

Common causes include peritonitis, appendicitis, bowel obstruction, pancreatitis, and diverticulitis, among others.