ICD-9-CM procedure code (retired)
27.0 — Drainage of face and floor of mouth
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 27.0
27.0 is an ICD-9-CM procedure code for drainage of face and floor of mouth. 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 30 ICD-10-PCS codes, such as 0C9000Z (Drainage of Upper Lip with Drainage Device, Open Approach), 0C900ZZ (Drainage of Upper Lip, Open Approach) and 0C90X0Z (Drainage of Upper Lip with Drainage Device, External Approach). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 0C9000ZDrainage of Upper Lip with Drainage Device, Open Approachapproximate
- 0C900ZZDrainage of Upper Lip, Open Approachapproximate
- 0C90X0ZDrainage of Upper Lip with Drainage Device, External Approachapproximate
- 0C90XZZDrainage of Upper Lip, External Approachapproximate
- 0C9100ZDrainage of Lower Lip with Drainage Device, Open Approachapproximate
- 0C910ZZDrainage of Lower Lip, Open Approachapproximate
- 0C91X0ZDrainage of Lower Lip with Drainage Device, External Approachapproximate
- 0C91XZZDrainage of Lower Lip, External Approachapproximate
- 0C9400ZDrainage of Buccal Mucosa with Drainage Device, Open Approachapproximate
- 0C940ZZDrainage of Buccal Mucosa, Open Approachapproximate
- 0C94X0ZDrainage of Buccal Mucosa with Drainage Device, External Approachapproximate
- 0C94XZZDrainage of Buccal Mucosa, External Approachapproximate
- 0J9100ZDrainage of Face Subcutaneous Tissue and Fascia with Drainage Device, Open Approachapproximate
- 0J910ZZDrainage of Face Subcutaneous Tissue and Fascia, Open Approachapproximate
- 0W9200ZDrainage of Face with Drainage Device, Open Approachapproximate
- 0W920ZZDrainage of Face, Open Approachapproximate
- 0W9240ZDrainage of Face with Drainage Device, Percutaneous Endoscopic Approachapproximate
- 0W924ZZDrainage of Face, Percutaneous Endoscopic Approachapproximate
- 0W9300ZDrainage of Oral Cavity and Throat with Drainage Device, Open Approachapproximate
- 0W930ZZDrainage of Oral Cavity and Throat, Open Approachapproximate
- 0W9340ZDrainage of Oral Cavity and Throat with Drainage Device, Percutaneous Endoscopic Approachapproximate
- 0W934ZZDrainage of Oral Cavity and Throat, Percutaneous Endoscopic Approachapproximate
- 0W9400ZDrainage of Upper Jaw with Drainage Device, Open Approachapproximate
- 0W940ZZDrainage of Upper Jaw, Open Approachapproximate
- 0W9440ZDrainage of Upper Jaw with Drainage Device, Percutaneous Endoscopic Approachapproximate
- 0W944ZZDrainage of Upper Jaw, Percutaneous Endoscopic Approachapproximate
- 0W9500ZDrainage of Lower Jaw with Drainage Device, Open Approachapproximate
- 0W950ZZDrainage of Lower Jaw, Open Approachapproximate
- 0W9540ZDrainage of Lower Jaw with Drainage Device, Percutaneous Endoscopic Approachapproximate
- 0W954ZZDrainage of Lower Jaw, Percutaneous Endoscopic Approachapproximate
Common questions about 27.0
What is the ICD-10 code for ICD-9 27.0?
- The GEMs map 27.0 to ICD-10-PCS 0C9000Z, 0C900ZZ, 0C90X0Z, 0C90XZZ, 0C9100Z, 0C910ZZ and 24 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.