ICD-9-CM procedure code (retired)
21.05 — Control of epistaxis by (transantral) ligation of the maxillary artery
About ICD-9-CM 21.05
21.05 is an ICD-9-CM procedure code for control of epistaxis by (transantral) ligation of the maxillary artery. 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 12 ICD-10-PCS codes, such as 03LM0CZ (Occlusion of Right External Carotid Artery with Extraluminal Device, Open Approach), 03LM0ZZ (Occlusion of Right External Carotid Artery, Open Approach) and 03LM3CZ (Occlusion of Right External Carotid Artery with Extraluminal Device, Percutaneous Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 03LM0CZOcclusion of Right External Carotid Artery with Extraluminal Device, Open Approachapproximate
- 03LM0ZZOcclusion of Right External Carotid Artery, Open Approachapproximate
- 03LM3CZOcclusion of Right External Carotid Artery with Extraluminal Device, Percutaneous Approachapproximate
- 03LM3ZZOcclusion of Right External Carotid Artery, Percutaneous Approachapproximate
- 03LM4CZOcclusion of Right External Carotid Artery with Extraluminal Device, Percutaneous Endoscopic Approachapproximate
- 03LM4ZZOcclusion of Right External Carotid Artery, Percutaneous Endoscopic Approachapproximate
- 03LN0CZOcclusion of Left External Carotid Artery with Extraluminal Device, Open Approachapproximate
- 03LN0ZZOcclusion of Left External Carotid Artery, Open Approachapproximate
- 03LN3CZOcclusion of Left External Carotid Artery with Extraluminal Device, Percutaneous Approachapproximate
- 03LN3ZZOcclusion of Left External Carotid Artery, Percutaneous Approachapproximate
- 03LN4CZOcclusion of Left External Carotid Artery with Extraluminal Device, Percutaneous Endoscopic Approachapproximate
- 03LN4ZZOcclusion of Left External Carotid Artery, Percutaneous Endoscopic Approachapproximate
Common questions about 21.05
What is the ICD-10 code for ICD-9 21.05?
- The GEMs map 21.05 to ICD-10-PCS 03LM0CZ, 03LM0ZZ, 03LM3CZ, 03LM3ZZ, 03LM4CZ, 03LM4ZZ and 6 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.