K58.9
K58.9: Irritable bowel syndrome, unspecified
Billable / specific codeICD-10-CM
K58.9 is a billable, specific ICD-10-CM code for irritable bowel syndrome, unspecified. It is valid for submission on a claim.
Check K58.9 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Irritable bowel syndrome NOS
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
K58.9 is named in 6 Medicare coverage policies: 6 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A55937Billing and Coding: Diagnostic Colonoscopy
- A56421Billing and Coding: CT of the Abdomen and Pelvis
- A56456Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
- A56461Billing and Coding: Endoscopy by Capsule
Alphabetic index entries that lead here
- Colic›mucous
- Colitis›spastic
- Hypermobility, hypermotility›ileum
- Hypermobility, hypermotility›intestine
- Irritable, irritability›bowel(syndrome)
- Irritable, irritability›colon
- Irritable, irritability›without diarrhea
- Spasm, spastic, spasticity›colon
- Spasm, spastic, spasticity›intestinal
- Spasm, spastic, spasticity›sigmoid
- Syndrome›irritable›bowel
Code history
- revisedFY2024-FY2027
Irritable bowel syndrome without diarrhea → Irritable bowel syndrome, unspecified