0L850ZZ
Division Lower Arm and Wrist Tendon, Right to No Qualifier with No Device, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | L Tendons |
| Operation | 8 Division |
| Body Part | 5 Lower Arm and Wrist Tendon, Right |
| Approach | 0 Open |
| Device | Z No Device |
| Qualifier | Z No Qualifier |
Operation Definition
Cutting into a body part, without draining fluids and/or gases from the body part, in order to separate or transect a body part
Procedure Overview
Tendon division procedures cut through a tendon to separate it, without draining any fluid or removing tissue. The classic example is a tenotomy performed to release excessive tension, most often in children or adults with contractures from conditions like clubfoot, cerebral palsy, or spasticity, where lengthening a tight tendon improves joint mobility and gait. The tendon is deliberately transected, sometimes at multiple levels, and allowed to heal in a lengthened position, or it may be left divided to eliminate an abnormal pulling force altogether.
Because the intent is purely to cut and separate rather than to remove tissue or drain fluid, this is a comparatively contained procedure that can often be done percutaneously with a small blade, avoiding an open incision. Patients typically need bracing or casting afterward to hold the limb in the corrected position while the tendon reattaches or scars into its new length.
Anatomy & Axis Detail
Lower Arm and Wrist Tendon, Right
The numerous flexor and extensor tendons of the right lower arm and wrist, which travel through the carpal tunnel and dorsal compartments to control finger and wrist motion, are frequently involved in contracture release procedures. Division cuts a specific tendon, often a flexor tendon contributing to a fixed flexion deformity or an extensor tendon involved in a Volkmann-type contracture, to relieve abnormal tension without removing tissue. Given the dense packing of tendons alongside the median, ulnar, and radial nerves and the radial and ulnar arteries in this compact region, precise identification of the target tendon is essential before cutting. Because multiple named tendons occupy this body part, the operative report should specify which one was divided to distinguish the procedure from a broader tenotomy or release involving adjacent structures.
Approach: Open
Open approach means the surgeon cuts through skin, mucous membrane, or other tissue layers to physically expose the target site to view before performing the procedure. It gives direct visualization and hands-on access, distinguishing it from Percutaneous approaches where instruments pass through a small puncture without exposing the site. Open is typical for procedures needing wide access, such as most laparotomies.
Coding & Documentation
A Division code applies when the documentation describes cutting or transecting the tendon to separate it, with no fluid or gas drainage and no tissue taken out of the body. Percutaneous tenotomy notes should state the tendon involved, the technique (open versus percutaneous), and confirm that the procedure's purpose was releasing tension or separating the structure rather than excising a lesion.
A common coding pitfall is confusing tenotomy performed for lengthening with tenotomy performed as an approach step to reach a deeper structure, which would not be separately coded. Coders also sometimes miss that if the surgeon removes a piece of the tendon rather than simply cutting through it, the case belongs under Excision instead, so precise reading of whether tissue was taken out is essential.