Muscles (0K) ICD-10-PCS
The 0K body system covers Medical and Surgical procedures on muscles, with 1,775 ICD-10-PCS codes across 19 root operations, 1,756 of them billable in fiscal year 2027. 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 19 operations · 1,775 codes
| Chars 1–3 | Root Operation | Codes | Billable |
|---|---|---|---|
| 0K2 | 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 | 5 | 4 |
| 0K5 | DestructionPhysical eradication of all or a portion of a body part by the direct use of energy, force or a destructive agent | 85 | 84 |
| 0K8 | DivisionCutting into a body part without draining fluids and/or gases from the body part in order to separate or transect a body part | 87 | 86 |
| 0K9 | DrainageTaking or letting out fluids and/or gases from a body part | 253 | 252 |
| 0KB | ExcisionCutting out or off, without replacement, a portion of a body part | 169 | 168 |
| 0KC | ExtirpationTaking or cutting out solid matter from a body part | 85 | 84 |
| 0KD | ExtractionPulling or stripping out or off all or a portion of a body part by the use of force | 29 | 28 |
| 0KH | 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 | 13 | 12 |
| 0KJ | InspectionVisually and/or manually exploring a body part | 9 | 8 |
| 0KM | ReattachmentPutting back in or on all or a portion of a separated body part to its normal location or other suitable location | 57 | 56 |
| 0KN | ReleaseFreeing a body part from an abnormal physical constraint by cutting or by use of force | 113 | 112 |
| 0KP | RemovalTaking out or off a device from a body part | 41 | 40 |
| 0KQ | RepairRestoring, to the extent possible, a body part to its normal anatomic structure and function | 85 | 84 |
| 0KR | 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 | 169 | 168 |
| 0KS | RepositionMoving to its normal location or other suitable location all or a portion of a body part | 57 | 56 |
| 0KT | ResectionCutting out or off, without replacement, all of a body part | 57 | 56 |
| 0KU | SupplementPutting in or on biological or synthetic material that physically reinforces and/or augments the function of a body part | 169 | 168 |
| 0KW | RevisionCorrecting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device | 47 | 46 |
| 0KX | TransferMoving, without taking out, all or a portion of a body part to another location to take over the function of all or a portion of a body part | 245 | 244 |
The info icon shows the official root operation definition and previews the codes in that range.
About the 0K Body System
These codes cover procedures on muscles from the head and face through the neck, trunk, arms, and legs to the hands and feet. The body-part character identifies the muscle region and, for many locations, the right or left side.
The tables include cutting out some or all of a muscle, pulling muscle tissue away, destroying muscle tissue, and removing solid matter from it. Others cover cutting muscle to separate it, draining fluid or gas, or exploring it by sight or touch. Procedures can also free, repair, reattach, reposition, or transfer muscle. Material can replace or reinforce muscle; other procedures insert an appliance or change, remove, or correct a device already in place.
Questions About This Page
How many codes are in the 0K body system?
The 0K body system contains 1,775 ICD-10-PCS codes in FY 2027, organized into 19 root operations. 1,756 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 2027 ICD-10-PCS order file and code tables, effective October 1, 2026 through September 30, 2027.
