ICD-10-PCS Billable Code

0Y6S0Z3

Detachment 2nd Toe, Left to Low with No Device, Open Approach

Procedural Specifications

Clinical Axis Detail Definition
Section0 Medical and Surgical
Body SystemY Anatomical Regions, Lower Extremities
Operation6 Detachment
Body PartS 2nd Toe, Left
Approach0 Open
DeviceZ No Device
Qualifier3 Low

Operation Definition

Cutting off all or a portion of the upper or lower extremities

Procedure Overview

This family covers amputation procedures of the lower extremity - removing all or part of a leg, thigh, knee, ankle, or foot when the limb can no longer be saved or is causing life-threatening harm. Common reasons include severe peripheral vascular disease that has cut off blood flow, uncontrolled diabetic infection, tissue death from trauma, malignant tumors, or crushing injuries where reconstruction isn't possible. The level chosen - above the knee, below the knee, through the ankle, or partial foot - depends on how much healthy, well-perfused tissue remains and how well the residual limb will support a prosthesis afterward.

Recovery involves wound healing, pain management, and eventually fitting for a prosthetic device and rehabilitation to relearn mobility. Surgeons try to preserve as much functional length as possible while ensuring the remaining tissue has adequate blood supply to heal.

Anatomy & Axis Detail

2nd Toe, Left

On the left foot, the second toe occupies the same central position adjacent to the hallux and is amputated for similar reasons: unsalvageable ischemia, deep infection, or traumatic injury. Left-sided procedures are coded independently of the right, so laterality must be confirmed from the operative note rather than assumed from prior encounters. As with its counterpart, this toe has two interphalangeal joints and a metatarsophalangeal joint, and the surgeon may disarticulate at any of these or cut through the shaft of a phalanx or metatarsal, each yielding a different qualifier. Loss of the second toe on this side can alter push-off mechanics and increase pressure on neighboring digits, which is why clinicians sometimes note the biomechanical rationale for the chosen amputation level alongside the pathology prompting the procedure.

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: Low

Low qualifies a partial toe detachment as occurring near the distal tip of the digit, preserving the most toe length among the three level options. It contrasts with High, which denotes amputation closer to the foot, and Mid, which falls in between. This qualifier is chosen only when the detachment does not remove the entire toe.

Coding & Documentation

Coders assign Detachment codes based on the specific anatomical level documented in the operative note - the body part value distinguishes 1st ray, 2nd through 5th ray, foot, ankle, lower leg, knee, upper leg, and hip disarticulation, so the note must state the exact bone or joint level transected. The qualifier further specifies complete versus high or low variants at some levels. A frequent error is defaulting to a generic 'leg amputation' code when the documentation actually supports a more precise ray- or joint-level qualifier, or missing that a revision amputation (converting a failed below-knee stump to above-knee) is coded as a new Detachment procedure at the higher level rather than an Excision.

Commonly Confused With

ExcisionThis is often confused with Excision, which removes only a portion of a body part without severing the limb at a joint or shaft level - a toe debridement or partial foot resection that leaves the limb's structural continuity intact is Excision, not Detachment.
DestructionIt's also distinguished from Destruction, used when tissue is eradicated in place (such as by cautery) rather than physically cut off and removed.