Anatomical Regions (7W) ICD-10-PCS
The 7W body system covers Osteopathic procedures on anatomical regions, with 101 ICD-10-PCS codes across 1 root operations, 100 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 1 operations · 101 codes
About the 7W Body System
These codes cover hands-on treatment of the head, back, sacrum (base of the spine), pelvis, limbs, rib cage, and abdomen.
The Treatment table describes manual treatment intended to relieve problems with body structure or function and related disorders. Its body-region character distinguishes cervical (neck), thoracic (upper back), and lumbar (lower back) regions, as well as upper and lower extremities (limbs).
Questions About This Page
How many codes are in the 7W body system?
The 7W body system contains 101 ICD-10-PCS codes in FY 2027, organized into 1 root operations. 100 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.
