ICD-10-CM 2026 · Effective October 1, 2025

ICD-10 K58.2

Billable / Specific

Mixed irritable bowel syndrome

K58
Block
0
Synonyms
154
LCDs
6
Payer Policies
1
Linked CPTs

About ICD-10-CM K58.2

ICD-10-CM code K58.2 represents Mixed irritable bowel syndrome. This is a billable/specific code in the Digestive System chapter (block K58). The 2026 edition of ICD-10-CM K58.2 became effective on October 1, 2025.

Medicare LCD Coverage for K58.2

Local Coverage Determinations (LCDs) from CMS MACs that list K58.2 as a covered diagnosis.

154 LCDs

Showing top 10 of 154 total . Click a CPT for full coverage scope.

CMS LCD: Billing and Coding: CT of the Abdomen and Pelvis
Article ID: 56421, Effective: 2025-11-01 00:00:00, 5389 covered, 0 non-covered
CPT 74170 →
CMS LCD: Billing and Coding: CT of the Abdomen and Pelvis
Article ID: 56421, Effective: 2025-11-01 00:00:00, 5389 covered, 0 non-covered
CPT 74177 →
CMS LCD: Billing and Coding: CT of the Abdomen and Pelvis
Article ID: 56421, Effective: 2025-11-01 00:00:00, 5389 covered, 0 non-covered
CPT 74160 →
CMS LCD: Billing and Coding: CT of the Abdomen and Pelvis
Article ID: 56421, Effective: 2025-11-01 00:00:00, 5389 covered, 0 non-covered
CPT 74178 →
CMS LCD: Billing and Coding: CT of the Abdomen and Pelvis
Article ID: 56421, Effective: 2025-11-01 00:00:00, 5389 covered, 0 non-covered
CPT 74150 →
CMS LCD: Billing and Coding: CT of the Abdomen and Pelvis
Article ID: 56421, Effective: 2025-11-01 00:00:00, 5389 covered, 0 non-covered
CPT 72194 →
CMS LCD: Billing and Coding: CT of the Abdomen and Pelvis
Article ID: 56421, Effective: 2025-11-01 00:00:00, 5389 covered, 0 non-covered
CPT 74176 →
CMS LCD: Billing and Coding: CT of the Abdomen and Pelvis
Article ID: 56421, Effective: 2025-11-01 00:00:00, 5389 covered, 0 non-covered
CPT 72192 →
CMS LCD: Billing and Coding: CT of the Abdomen and Pelvis
Article ID: 56421, Effective: 2025-11-01 00:00:00, 5389 covered, 0 non-covered
CPT 72193 →
CMS LCD: Billing and Coding: Diagnostic Colonoscopy
Article ID: 55937, Effective: 2026-02-04 00:00:00, 244 covered, 1 non-covered
CPT 45398 →

Commercial Payer Coverage

Coverage policies from major commercial payers referencing K58.2.

6 policies

5 Medicare

Billing and Coding: Diagnostic Colonoscopy
Policy ID: ART-55937
Billing and Coding: Colonoscopy and Sigmoidoscopy-Diagnostic
Policy ID: ART-56394
Billing and Coding: CT of the Abdomen and Pelvis
Policy ID: ART-56421
Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Policy ID: ART-56632
Billing and Coding: Wireless Gastrointestinal Motility Monitoring Systems
Policy ID: ART-56724

CPT Codes Commonly Billed with K58.2

Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.

1 linkages
  • 91112 CMS LCD: Billing and Coding: Wireless Gastrointestinal Motility Monitoring Systems CMS LCD

Convert K58.2 to ICD-9-CM

Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.

ICD-10ICD-9Mapping Flags
K58.2 5641 10000

Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).

ICD-10 K58.2, Billing FAQ

Is ICD-10 code K58.2 billable? +

Yes, K58.2 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.

What CPT codes are commonly billed with K58.2? +

Procedures frequently paired with K58.2 include: 91112.

What ICD-9 codes does K58.2 map to? +

Per CMS GEMs, K58.2 maps to ICD-9 codes: 5641. Useful for legacy data review and historical claim analysis.

Get the full PayerReady toolkit

Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.

Start free →

Run this code through our claim audit tool

Check NCCI bundling, MUE limits, and modifier logic before submission.

Try the auditor →

Did this page help?

Quick signal so we know what to improve.

Thanks!

If you want a code reference page that doesn't exist yet, email coding@payerready.com.

Sorry to hear that.

Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.

Reviewed by the PayerReady Medical Coding Team

Verified against the CMS 2026 code set on May 31, 2026.

Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team

Faster Approvals

Ready to Cut Your Enrollment Timeline in Half?

Join providers in all 50 states who handed off credentialing to a dedicated specialist. Create your free account in minutes and start enrolling the same day.

All 50 States Covered
No Long-Term Contracts
HIPAA HIPAA Compliant Platform
Dedicated Specialist Included