ICD-9-CM procedure code (retired)
45.91 — Small-to-small intestinal anastomosis
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-PCS equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 45.91
45.91 is an ICD-9-CM procedure code for Small-to-small intestinal anastomosis. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-PCS took over.
The CMS General Equivalence Mappings translate it to 20 ICD-10-PCS codes, such as 0D190Z9 (Bypass Duodenum to Duodenum, Open Approach), 0D190ZA (Bypass Duodenum to Jejunum, Open Approach) and 0D190ZB (Bypass Duodenum to Ileum, Open Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 0D190Z9Bypass Duodenum to Duodenum, Open Approachapproximate
- 0D190ZABypass Duodenum to Jejunum, Open Approachapproximate
- 0D190ZBBypass Duodenum to Ileum, Open Approachapproximate
- 0D194Z9Bypass Duodenum to Duodenum, Percutaneous Endoscopic Approachapproximate
- 0D194ZABypass Duodenum to Jejunum, Percutaneous Endoscopic Approachapproximate
- 0D194ZBBypass Duodenum to Ileum, Percutaneous Endoscopic Approachapproximate
- 0D198Z9Bypass Duodenum to Duodenum, Via Natural or Artificial Opening Endoscopicapproximate
- 0D198ZABypass Duodenum to Jejunum, Via Natural or Artificial Opening Endoscopicapproximate
- 0D198ZBBypass Duodenum to Ileum, Via Natural or Artificial Opening Endoscopicapproximate
- 0D1A0ZABypass Jejunum to Jejunum, Open Approachapproximate
- 0D1A0ZBBypass Jejunum to Ileum, Open Approachapproximate
- 0D1A4ZABypass Jejunum to Jejunum, Percutaneous Endoscopic Approachapproximate
- 0D1A4ZBBypass Jejunum to Ileum, Percutaneous Endoscopic Approachapproximate
- 0D1A8ZABypass Jejunum to Jejunum, Via Natural or Artificial Opening Endoscopicapproximate
- 0D1A8ZBBypass Jejunum to Ileum, Via Natural or Artificial Opening Endoscopicapproximate
- 0D1A8ZHBypass Jejunum to Cecum, Via Natural or Artificial Opening Endoscopicapproximate
- 0D1B0ZBBypass Ileum to Ileum, Open Approachapproximate
- 0D1B4ZBBypass Ileum to Ileum, Percutaneous Endoscopic Approachapproximate
- 0D1B8ZBBypass Ileum to Ileum, Via Natural or Artificial Opening Endoscopicapproximate
- 0D1B8ZHBypass Ileum to Cecum, Via Natural or Artificial Opening Endoscopicapproximate
Common questions about 45.91
What is the ICD-10 code for ICD-9 45.91?
- The GEMs map 45.91 to ICD-10-PCS 0D190Z9, 0D190ZA, 0D190ZB, 0D194Z9, 0D194ZA, 0D194ZB and 14 more.
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.