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ICD-10 Coding for Irritable Bowel Syndrome with Constipation(K58.1)

Complete ICD-10-CM coding and documentation guide for Irritable Bowel Syndrome with Constipation. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

IBS-CIrritable Bowel Syndrome Constipation

Related ICD-10 Code Ranges

Complete code families applicable to Irritable Bowel Syndrome with Constipation

K58-K59Primary Range

Functional intestinal disorders

This range includes codes for irritable bowel syndrome and other functional bowel disorders, specifically covering IBS with constipation.

Key Information: ICD-10 code for IBS with constipation

Essential facts and insights about Irritable Bowel Syndrome with Constipation

The ICD-10 code for irritable bowel syndrome with constipation is K58.1, used when Rome IV criteria are met.

Primary ICD-10-CM Code for irritable bowel syndrome constipation

Irritable bowel syndrome with constipation
Billable Code

Decision Criteria

clinical Criteria

  • Abdominal pain at least 1 day per week for 3 months

documentation Criteria

  • Document Rome IV criteria and normal lab results

Applicable To

  • IBS with constipation

Excludes

  • IBS with diarrhea (K58.0)

Clinical Validation Requirements

  • Recurrent abdominal pain at least 1 day per week
  • Constipation-predominant stools in at least 25% of bowel movements
  • Symptoms meet Rome IV criteria

Code-Specific Risks

  • Misclassification if Rome IV criteria are not met
  • Omission of exclusionary testing documentation

Coding Notes

  • Ensure documentation of Rome IV criteria and exclusion of other conditions.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Generalized abdominal pain

R10.84
Use for severe bloating requiring separate documentation.

Fecal impaction

K56.41
Use if fecal impaction is confirmed by imaging or rectal exam.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Irritable bowel syndrome with diarrhea

K58.0
Use K58.0 if diarrhea is predominant in more than 25% of bowel movements.

Chronic idiopathic constipation

K59.04
Use K59.04 if constipation is present without abdominal pain or IBS criteria.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Irritable Bowel Syndrome with Constipation to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code K58.1.

Impact

Clinical: May lead to misdiagnosis and inappropriate treatment., Regulatory: Increases risk of audit and compliance issues., Financial: Potential for denied claims due to lack of specificity.

Mitigation Strategy

Include normal lab and imaging results in documentation, Use structured templates to ensure completeness

Impact

Reimbursement: May lead to lower reimbursement rates., Compliance: Increases risk of audit due to lack of specificity., Data Quality: Decreases accuracy of clinical data.

Mitigation Strategy

Use K58.1 for IBS-C with documented criteria instead of unspecified codes.

Impact

Failure to document criteria can lead to audits.

Mitigation Strategy

Use structured templates and checklists to ensure all criteria are documented.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Irritable Bowel Syndrome with Constipation, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Irritable Bowel Syndrome with Constipation

Use these documentation templates to ensure complete and accurate documentation for Irritable Bowel Syndrome with Constipation. These templates include all required elements for proper coding and billing.

Gastroenterology Progress Note

Specialty: Gastroenterology

Required Elements

  • Patient history
  • Symptom frequency and duration
  • Rome IV criteria
  • Lab and imaging results

Example Documentation

**Subjective**: 34F c/o recurrent RLQ pain (5/10) 4x/week x 8mo, relieved by BM. Stools: Hard/lumpy (Bristol 1-2) 80% BMs, 2 BMs/week. Denies blood/melena. **Objective**: Abd: Soft, RLQ tenderness. No rebound/guarding. Rectal: No masses, stool occult blood negative. **Assessment**: IBS-C (Rome IV criteria met). Normal colonoscopy 3/2025, CBC/CRP WNL. **Plan**: Linaclotide 145mcg daily, increase fiber.

Examples: Poor vs. Good Documentation

Poor Documentation Example
"Constipation and belly pain. Start laxatives."
Good Documentation Example
"IBS-C confirmed per Rome IV: Pain 4x/week x 8mo, Bristol 1-2 stools 80% BMs. Normal colonoscopy 3/2025. Initiated linaclotide."
Explanation
The good example specifies Rome IV criteria and includes supporting test results, providing a complete clinical picture.

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