Amputation of Toe and Foot (CPT & ICD 10) Coding Guide

Amputation of lower extremity joints and non-joints region has specific CPT codes and ICD 10 codes. The codes are based on the site from which site it is amputated. We will also look the specific diagnosis codes used with  amputation CPT codes. For amputation of foot and toes CPT code 28800, 28805, 28810, 28820 & 28825 are used by medical coders.

Description of CPT code 28800, 28805, 28810, 28820 & 28825

CPT code 28800  Amputation, foot; midtarsal (eg, Chopart type procedure)

In this exam, the physician amputates the foot across the midtarsal region. The physician makes the incision so that skin flaps are made dorsally and plantarly. The skin is refracted and the dissection is carried down through the soft tissue. The tendons are severed and allowed to retract. The dorsal and plantar ligaments of the calcaneocuboid and talonavicular joints are released so that the foot can be removed. The physician may also perform a percutaneous Achilles tenotomy (reported separately) to prevent flexion contracture. Skin flaps are closed and a soft compression dressing is applied.

ICD 10 codes from Z89.43 series are  used for reporting amputation of foot or absence of foot.

Z89.431 Acquired absence of right foot

Z89.432 Acquired absence of left foot

Z89.439 Acquired absence of unspecified foot

Amputation of Toe and Foot (CPT & ICD 10) Coding Guide

CPT code 28805 Amputation, foot; transmetatarsal

In this procedure, the physician amputates the foot across the transmetatarsal region. The physician makes the incision so that skin flaps are made dorsally and plantarly. The skin is refracted and the dissection is carried down through the soft tissue. The tendons are severed and allowed to retract. The dorsal and plantar ligaments are released so that the foot can be removed. The physician may also perform a percutaneous Achilles tenotomy (reported separately) to prevent flexion contracture. Skin flaps are closed and a soft compression dressing is applied.

 

CPT code 28810 Amputation, metatarsal, with toe, single

During the exam, the physician performs an amputation of a metatarsal bone and its attached toe. An incision is made dorsally over the involved metatarsal and toe. This is carried deep to the tarsometatarsal joint. The joint and capsule are identified. A capsulotomy is performed and the metatarsal is disarticulated from the other toes. The incision is continued around the toe itself. Tendons are retracted or removed as indicated. The metatarsal bone and the toe are completely dissected free from the foot and removed. The wound is irrigated and debrided. It is closed in layers. A dressing and a cast or a brace are applied

 

CPT code 28820 Amputation, toe; metatarsophalangeal joint

ICD 10 codes from Z89.41 & Z89.42  series are  used for reporting amputation or absence of great toe & other toes

Z89.411 Acquired absence of right great toe

Z89.412 Acquired absence of left great toe

Z89.419 Acquired absence of unspecified great toe  

 

Z89.421 Acquired absence of other right toe(s)

Z89.422 Acquired absence of other left toe(s)

Z89.429 Acquired absence of other toe(s), unspecified side

For traumatic amputation of foot & Toe ,coders has to use S98 (Traumatic amputation of ankle and foot) series diagnosis codes.

In this exam, the physician performs an amputation of a toe at the metatarsophalangeal joint. An incision is made over and around the affected toe where the toe joins the foot. The physician continues the incision deep to the metatarsophalangeal joint. The capsule is identified and a capsulotomy is performed. The proximal phalanx bone is disarticulated from the metatarsal bone. The joint is debrided. The tendon and soft tissues are excised for closure and skin coverage. The toe is excised free from the foot. The wound is irrigated and closed in layers. A dressing and firm-soled shoe are applied.

 

CPT code 28825 Amputation, toe;  interphalangeal joint

In his procedure,  physician performs an amputation of a portion of a toe at the level of an interphalangeal joint. An incision is made over the involved toe. It is carried deep to the planned interphalangeal joint amputation site. Skin is preserved around the toe for closure. The physician extends the incision deep to the joint capsule. A capsulotomy is performed and the joint is disarticulated. Debridement is performed. The soft tissues are excised and prepared for the amputation. The desired portion of toe to include the disarticulated bone is excised free. The wound is irrigated and closed in layers. A dressing and post-operative shoe are applied.

 

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