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ICD-10 Coding for Irritable Bowel Syndrome Unspecified(K58.9)

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

Also known as:

IBS-UIBS-NOSFunctional Bowel Disorder

Related ICD-10 Code Ranges

Complete code families applicable to Irritable Bowel Syndrome Unspecified

K58-K58.9Primary Range

Irritable bowel syndrome

This range includes all codes related to irritable bowel syndrome, including unspecified and subtype-specific codes.

Key Information: ICD-10 code for IBS unspecified

Essential facts and insights about Irritable Bowel Syndrome Unspecified

ICD-10 code K58.9 is used for irritable bowel syndrome when no specific subtype is documented.

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

Irritable bowel syndrome, unspecified
Billable Code

Decision Criteria

clinical Criteria

  • Recurrent abdominal pain associated with defecation

coding Criteria

  • No subtype specified in documentation

Applicable To

  • IBS without specified subtype

Excludes

Clinical Validation Requirements

  • Recurrent abdominal pain ≥1 day/week in last 3 months
  • Associated with defecation and/or change in stool frequency/form
  • Normal CBC, ESR, CRP, fecal calprotectin

Code-Specific Risks

  • Using K58.9 when a subtype is documented can lead to incorrect coding.

Coding Notes

  • Ensure documentation explicitly states 'IBS' and meets Rome IV criteria.

Ancillary Codes

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

Generalized abdominal pain

R10.84
Use when abdominal pain is a significant symptom.

Constipation, unspecified

K59.00
Use if constipation is present but not predominant.

Differential Codes

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

Irritable bowel syndrome with diarrhea

K58.0
Use when diarrhea is the predominant symptom.

Irritable bowel syndrome with constipation

K58.1
Use when constipation is the predominant symptom.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Irritable Bowel Syndrome Unspecified to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code K58.9.

Impact

Clinical: May lead to incomplete diagnosis., Regulatory: Non-compliance with coding standards., Financial: Potential for reduced reimbursement.

Mitigation Strategy

Ensure IBS is explicitly documented, Link symptoms to IBS diagnosis

Impact

Reimbursement: Incorrect coding may lead to reduced reimbursement., Compliance: Non-compliance with coding guidelines., Data Quality: Impacts accuracy of patient records.

Mitigation Strategy

Use K58.1 for IBS with constipation.

Impact

Using K58.9 when a specific subtype is documented.

Mitigation Strategy

Ensure documentation specifies subtype if known.

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 Unspecified, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Irritable Bowel Syndrome Unspecified

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

General Practice Visit

Specialty: Family Medicine

Required Elements

  • Patient history
  • Rome IV criteria
  • Negative workup results

Example Documentation

Patient presents with abdominal pain. Meets Rome IV criteria for IBS. Labs normal. No subtype specified.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Chronic abdominal discomfort.
Good Documentation Example
Meets Rome IV criteria for IBS; subtype not specified.
Explanation
The good example provides specific criteria and excludes subtypes.

Need help with ICD-10 coding for Irritable Bowel Syndrome Unspecified? Ask your questions below.

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