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ICD-10 Guide
ICD-10 CodesK58.1

K58.1

Billable

Irritable bowel syndrome with constipation

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 K58.1 is a billable code used to indicate a diagnosis of irritable bowel syndrome with constipation.

Key Diagnostic Point:

Irritable bowel syndrome with constipation (IBS-C) is a functional gastrointestinal disorder characterized by chronic abdominal pain and altered bowel habits, specifically constipation. The condition affects the large intestine, leading to symptoms such as infrequent bowel movements, hard or lumpy stools, and abdominal discomfort. The pathophysiology of IBS-C is complex and may involve dysregulation of the gut-brain axis, altered gut motility, and visceral hypersensitivity. Patients often experience a fluctuating course of symptoms, with periods of exacerbation and remission. Diagnostic considerations for IBS-C include a thorough clinical history, exclusion of organic causes through laboratory tests and imaging, and the application of diagnostic criteria such as the Rome IV criteria. The diagnosis is primarily clinical, as there are no definitive laboratory tests for IBS-C. Treatment typically involves dietary modifications, pharmacological interventions such as laxatives or medications specifically for IBS-C, and lifestyle changes aimed at symptom management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity
  • Treatment complexity
  • Documentation requirements
  • Coding specificity

Audit Risk Factors

  • Common coding errors include misclassification of IBS types.
  • Documentation gaps may arise from insufficient detail on symptom frequency and severity.
  • Billing challenges often stem from the need for clear evidence of chronicity and treatment attempts.

Specialty Focus

Medical Specialties

Gastroenterology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Primary Care

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related ICD-10 Codes

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Irritable bowel syndrome with constipation significantly impacts patient quality of life and healthcare utilization. It is prevalent in the general population, affecting approximately 10-15% of adults. The condition can lead to increased healthcare visits, diagnostic testing, and treatment costs. Quality measures for IBS-C focus on symptom management and patient education, aiming to improve health outcomes and reduce the burden on healthcare systems.

ICD-9 vs ICD-10

Irritable bowel syndrome with constipation significantly impacts patient quality of life and healthcare utilization. It is prevalent in the general population, affecting approximately 10-15% of adults. The condition can lead to increased healthcare visits, diagnostic testing, and treatment costs. Quality measures for IBS-C focus on symptom management and patient education, aiming to improve health outcomes and reduce the burden on healthcare systems.

Reimbursement & Billing Impact

Reimbursement considerations include the need for clear evidence of chronicity and the impact of IBS-C on the patient's quality of life. Common denials may arise from insufficient documentation or failure to demonstrate medical necessity for treatments. Best practices include maintaining thorough clinical notes, utilizing symptom diaries, and ensuring that all treatment attempts are well-documented to support claims.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for K00-K99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for K00-K99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by K58.1?

K58.1 specifically covers irritable bowel syndrome with predominant constipation, characterized by symptoms such as infrequent bowel movements, straining during defecation, and abdominal pain that improves with bowel movements. It is essential to differentiate this from other gastrointestinal disorders that may present with similar symptoms.

When should K58.1 be used instead of related codes?

K58.1 should be used when the patient presents with symptoms of IBS specifically with constipation as the predominant feature. It is crucial to utilize this code when constipation is a significant aspect of the patient's symptomatology, distinguishing it from K58.0, which does not include constipation.

What documentation supports K58.1?

Documentation for K58.1 should include a detailed patient history, symptom diary, and evidence of chronic constipation. Clinical notes should reflect the frequency and nature of bowel movements, abdominal pain characteristics, and any treatments attempted, including dietary changes and medications.