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ICD-10 Coding for Slow Transit Constipation(K59.01, K59.00)

Complete ICD-10-CM coding and documentation guide for Slow Transit Constipation. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Colonic InertiaDelayed Colonic Transit

Related ICD-10 Code Ranges

Complete code families applicable to Slow Transit Constipation

K59.0-K59.09Primary Range

Functional intestinal disorders, including constipation

This range includes codes for various types of constipation, including slow transit constipation.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
K59.01Slow transit constipationUse when slow transit constipation is confirmed by diagnostic tests and documented appropriately.
  • Delayed colonic transit confirmed by Sitzmark test
  • Absence of pelvic floor dysfunction on anorectal manometry
  • Chronic symptoms >6 months with ≥2 Rome IV criteria met
K59.00Constipation, unspecifiedUse when constipation is documented but not yet specified as slow transit or another type.
  • Initial diagnosis before specific testing

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for slow transit constipation

Essential facts and insights about Slow Transit Constipation

The ICD-10 code for slow transit constipation is K59.01, used when diagnostic tests confirm delayed colonic transit.

Primary ICD-10-CM Codes for slow transit constipation

Slow transit constipation
Billable Code

Decision Criteria

clinical Criteria

  • Delayed colonic transit confirmed by diagnostic testing

documentation Criteria

  • Chronicity and specific symptoms documented according to Rome IV criteria

Applicable To

  • Chronic constipation with delayed colonic transit

Excludes

  • Hirschsprung's disease (Q43.1)
  • Opioid-induced constipation (K59.03)

Clinical Validation Requirements

  • Delayed colonic transit confirmed by Sitzmark test
  • Absence of pelvic floor dysfunction on anorectal manometry
  • Chronic symptoms >6 months with ≥2 Rome IV criteria met

Code-Specific Risks

  • Risk of using unspecified codes leading to lower reimbursement

Coding Notes

  • Ensure documentation specifies slow transit type and excludes other causes like drug-induced or outlet dysfunction.

Ancillary Codes

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

Drug-induced constipation

K59.03
Use when constipation is directly attributed to medication use, such as opioids.

Differential Codes

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

Hirschsprung's disease

Q43.1
Absence of rectoanal inhibitory reflex on manometry differentiates from slow transit constipation.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Slow Transit Constipation to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code K59.01.

Impact

Clinical: May lead to inappropriate treatment plans., Regulatory: Increases risk of audit and non-compliance., Financial: Potential for reduced reimbursement.

Mitigation Strategy

Ensure thorough diagnostic evaluation, Document specific findings and test results

Impact

Reimbursement: May result in lower reimbursement rates., Compliance: Increases risk of non-compliance with coding standards., Data Quality: Reduces specificity and accuracy of clinical data.

Mitigation Strategy

Ensure diagnostic tests confirm slow transit constipation before coding K59.01.

Impact

High risk of audit when unspecified codes are used inappropriately.

Mitigation Strategy

Ensure specific diagnostic criteria are met and documented before coding.

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 Slow Transit Constipation, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Slow Transit Constipation

Use these documentation templates to ensure complete and accurate documentation for Slow Transit Constipation. These templates include all required elements for proper coding and billing.

Chronic slow transit constipation diagnosis

Specialty: Gastroenterology

Required Elements

  • Patient history
  • Physical examination findings
  • Diagnostic test results
  • Assessment and plan

Example Documentation

Patient presents with chronic constipation >8 months: <2 bowel movements/week, hard stools (Bristol Type 1), straining >25% of BMs. Sitzmark test: 15% expulsion at 120 hrs. Anorectal manometry normal.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Patient has constipation.
Good Documentation Example
Chronic constipation >8 months: <2 bowel movements/week, hard stools (Bristol Type 1), straining >25% of BMs. Sitzmark test: 15% expulsion at 120 hrs. Anorectal manometry normal.
Explanation
The good example provides specific details on symptoms, duration, and diagnostic test results, which are necessary for accurate coding.

Need help with ICD-10 coding for Slow Transit Constipation? Ask your questions below.

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