0X6K0Z9
Detachment Hand, Left to Partial 1st Ray with No Device, Open Approach
Procedural Specifications
| Clinical Axis | Detail Definition |
|---|---|
| Section | 0 Medical and Surgical |
| Body System | X Anatomical Regions, Upper Extremities |
| Operation | 6 Detachment |
| Body Part | K Hand, Left |
| Approach | 0 Open |
| Device | Z No Device |
| Qualifier | 9 Partial 1st Ray |
Operation Definition
Cutting off all or a portion of the upper or lower extremities
Procedure Overview
Detachment procedures in this family involve amputation of all or part of the upper extremity at a level not captured by the more specific arm, forearm, or hand body system codes, cutting through the limb to remove a portion of it. Reasons for these operations include severe trauma, infection that has not responded to other treatment, tumors, or complications of vascular disease that leave the tissue non-viable.
The surgery is performed at a defined anatomical level, and the choice of that level balances removing all compromised tissue against preserving as much functional limb length as possible for future prosthetic fitting and rehabilitation.
Anatomy & Axis Detail
Hand, Left
Detachment of the left hand through the wrist removes the carpal, metacarpal, and phalangeal complex while preserving the radius, ulna, and the forearm's rotational function. Indications include extensive malignant tumors of the hand, unsalvageable crush or avulsion trauma affecting the palm and multiple digits, or aggressive infection destroying hand tissue beyond reconstructive salvage. The operation involves transecting through the carpal bones or the radiocarpal joint, ligating the radial and ulnar arteries along with their contributions to the palmar arches, and dividing the median and ulnar nerves so they retract into the forearm musculature. Because the distal radioulnar joint is left intact at this level, pronation and supination are preserved, which is a meaningful functional advantage over a more proximal forearm amputation when fitting a prosthesis on the left side.
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.
Qualifier: Partial 1st Ray
Partial 1st Ray qualifies a detachment as removing the great toe along with only part of its metatarsal bone, rather than the entire ray. It is distinguished from Complete 1st Ray, where the metatarsal is fully excised, and from partial amputations of other numbered rays. The distinction affects residual forefoot length and later prosthetic or functional planning.
Coding & Documentation
Coders select from this family when the documentation specifies detachment at the shoulder or another level classified under the general upper extremity body system rather than a level with its own dedicated body part, such as the specific bones of the forearm or hand. The amputation level recorded in the operative note is essential, since it determines both the correct body part value and the qualifier describing the level of detachment, and miscoding often happens when the level documented doesn't match the code selected. Revision of a prior amputation stump is also coded here when tissue is further removed, and should not be mistaken for a routine wound debridement.
Commonly Confused With
Excision is sometimes confused with Detachment when only a small amount of tissue is removed from the extremity, but Detachment specifically applies to cutting through the limb itself rather than just removing a lesion or damaged tissue while preserving the limb's structure. Amputation coded to the arm or hand-specific body systems is the other close neighbor, distinguished purely by the anatomical level at which the cut is made.