Ear, Nose, Sinus (09) ICD-10-PCS
The 09 body system covers Medical and Surgical procedures on ear, nose, sinus, with 4,358 ICD-10-PCS codes across 22 root operations, 4,314 of them billable in fiscal year 2026. Each root operation defines a distinct procedural objective, and the info icons show the official definition with a preview of the codes inside.
Root Operations in This Body System 22 operations · 4,358 codes
| Chars 1–3 | Root Operation | Codes | Billable |
|---|---|---|---|
| 090 | AlterationModifying the anatomic structure of a body part without affecting the function of the body part | 130 | 128 |
| 091 | BypassAltering the route of passage of the contents of a tubular body part | 18 | 16 |
| 092 | ChangeTaking out or off a device from a body part and putting back an identical or similar device in or on the same body part without cutting or puncturing the skin or a mucous membrane | 18 | 16 |
| 095 | DestructionPhysical eradication of all or a portion of a body part by the direct use of energy, force or a destructive agent | 232 | 230 |
| 097 | DilationExpanding an orifice or the lumen of a tubular body part | 40 | 38 |
| 098 | DivisionCutting into a body part without draining fluids and/or gases from the body part in order to separate or transect a body part | 12 | 10 |
| 099 | DrainageTaking or letting out fluids and/or gases from a body part | 806 | 804 |
| 09B | ExcisionCutting out or off, without replacement, a portion of a body part | 462 | 460 |
| 09C | ExtirpationTaking or cutting out solid matter from a body part | 232 | 230 |
| 09D | ExtractionPulling or stripping out or off all or a portion of a body part by the use of force | 108 | 106 |
| 09H | InsertionPutting in a non-biological appliance that monitors, assists, performs or prevents a physiological function but does not physically take the place of a body part | 150 | 148 |
| 09J | InspectionVisually and/or manually exploring a body part | 90 | 88 |
| 09M | ReattachmentPutting back in or on all or a portion of a separated body part to its normal location or other suitable location | 8 | 6 |
| 09N | ReleaseFreeing a body part from an abnormal physical constraint by cutting or by use of force | 232 | 230 |
| 09P | RemovalTaking out or off a device from a body part | 258 | 256 |
| 09Q | RepairRestoring, to the extent possible, a body part to its normal anatomic structure and function | 244 | 242 |
| 09R | ReplacementPutting in or on biological or synthetic material that physically takes the place and/or function of all or a portion of a body part | 188 | 186 |
| 09S | RepositionMoving to its normal location or other suitable location all or a portion of a body part | 78 | 76 |
| 09T | ResectionCutting out or off, without replacement, all of a body part | 166 | 164 |
| 09U | SupplementPutting in or on biological or synthetic material that physically reinforces and/or augments the function of a body part | 566 | 564 |
| 09W | RevisionCorrecting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device | 314 | 312 |
| 093 | ControlStopping, or attempting to stop, postprocedural or other acute bleeding | 6 | 4 |
The info icon shows the official root operation definition and previews the codes in that range.
About the 09 Body System
The ICD-10-PCS classification for the Ear, Nose, Sinus system includes a wide range of root operations that describe various surgical and procedural interventions. These operations define how the anatomy of these structures is modified, repaired, or examined within the Medical and Surgical section.
For example, the root operation Alteration (Code 090) involves modifying a body part's structure without changing its function, while Bypass (091) means altering the route of a tubular passage. Other operations include Destruction (095), which eradicates part of the body using energy or force, and Dilation (097), which expands an orifice or lumen. Procedures like Excision (09B) remove a portion of a body part without replacement, whereas Replacement (09R) involves inserting biological or synthetic material to take the place of the tissue. Additionally, Inspection (09J) allows visual or manual exploration of structures. These root operations, among others such as Repair (09Q) and Drainage (099), provide precise coding options to capture the complexity of procedures performed on the ear, nose, and sinus systems.
Questions About This Page
How many codes are in the 09 body system?
The 09 body system contains 4,358 ICD-10-PCS codes in FY 2026, organized into 22 root operations. 4,314 of them are billable on inpatient claims.
What is a root operation?
The root operation is the third character of every ICD-10-PCS code and names the objective of the procedure. Drainage takes fluid out, Excision cuts out a portion of a body part, and Resection removes all of one. Picking the right root operation is the central skill of PCS coding, so each one above carries its official CMS definition.
Related References
Source: CMS FY 2026 ICD-10-PCS order file and code tables, effective October 1, 2025 through September 30, 2026.
