Oxford Health Protection Research Unit codelists


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Large bowel surgery - Exteriorisation of caecum (Contaminated) (H14) OPCS-4
Procedure category: Large bowel surgery - Incision, excision or anastomosis of the large bowel, including procedures that involve anastomosis of small to large bowel.

Procedure subcategory: Exteriorisation of caecum (Contaminated) (H14)
Large bowel surgery - Extirpation of lesion of colon (H12) OPCS-4
Procedure category: Large bowel surgery - Incision, excision or anastomosis of the large bowel, including procedures that involve anastomosis of small to large bowel.

Procedure subcategory: Extirpation of lesion of colon (H12)
Large bowel surgery - Incision of colon (Clean contaminated) (H16) OPCS-4
Procedure category: Large bowel surgery - Incision, excision or anastomosis of the large bowel, including procedures that involve anastomosis of small to large bowel.

Procedure subcategory: Incision of colon (Clean contaminated) (H16)
Large bowel surgery - Laparoscopically assisted approach to the abdominal cavity. (Y75) OPCS-4
Procedure category: Large bowel surgery - Incision, excision or anastomosis of the large bowel, including procedures that involve anastomosis of small to large bowel.

Procedure subcategory: Laparoscopically assisted approach to the abdominal cavity. (Y75)
Large bowel surgery - Other connection of ileum (Clean-contaminated) (G72) OPCS-4
Procedure category: Large bowel surgery - Incision, excision or anastomosis of the large bowel, including procedures that involve anastomosis of small to large bowel.

Procedure subcategory: Other connection of ileum (Clean-contaminated) (G72)
Large bowel surgery - Other excision of colon (Clean-Contaminated) (H11) OPCS-4
Procedure category: Large bowel surgery - Incision, excision or anastomosis of the large bowel, including procedures that involve anastomosis of small to large bowel.

Procedure subcategory: Other excision of colon (Clean-Contaminated) (H11)
Large bowel surgery - Other excision of right hemicolon (Clean-Contaminated) (H07) OPCS-4
Procedure category: Large bowel surgery - Incision, excision or anastomosis of the large bowel, including procedures that involve anastomosis of small to large bowel.

Procedure subcategory: Other excision of right hemicolon (Clean-Contaminated) (H07)
Large bowel surgery - Other exteriorisation of colon (H15) OPCS-4
Procedure category: Large bowel surgery - Incision, excision or anastomosis of the large bowel, including procedures that involve anastomosis of small to large bowel.

Procedure subcategory: Other exteriorisation of colon (H15)
Large bowel surgery - Subtotal excision of colon and rectum (Clean contaminated) (H29) OPCS-4
Procedure category: Large bowel surgery - Incision, excision or anastomosis of the large bowel, including procedures that involve anastomosis of small to large bowel.

Procedure subcategory: Subtotal excision of colon and rectum (Clean contaminated) (H29)
Large bowel surgery - Total excision of colon (Clean-Contaminated) (H05) OPCS-4
Procedure category: Large bowel surgery - Incision, excision or anastomosis of the large bowel, including procedures that involve anastomosis of small to large bowel.

Procedure subcategory: Total excision of colon (Clean-Contaminated) (H05)
Large bowel surgery - Total excision of colon and rectum (Clean-Contaminated) (H04) OPCS-4
Procedure category: Large bowel surgery - Incision, excision or anastomosis of the large bowel, including procedures that involve anastomosis of small to large bowel.

Procedure subcategory: Total excision of colon and rectum (Clean-Contaminated) (H04)
Limb amputation - Amputation of arm (X07) OPCS-4
Procedure category: Limb amputation - Total or partial amputation or disarticulation of the upper or lower limbs, including digits Wound class: Amputations where the limb is ischaemic, or where dry gangrene is present should be classified as clean. Amputations through, or adjacent to, an area of acute inflammation (without pus or ulceration) should be classified as contaminated. Amputations adjacent to, or through necrotic ulcers and/or purulent areas should be classified as dirty.

Procedure s…
Limb amputation - Amputation of foot (X10) OPCS-4
Procedure category: Limb amputation - Total or partial amputation or disarticulation of the upper or lower limbs, including digits Wound class: Amputations where the limb is ischaemic, or where dry gangrene is present should be classified as clean. Amputations through, or adjacent to, an area of acute inflammation (without pus or ulceration) should be classified as contaminated. Amputations adjacent to, or through necrotic ulcers and/or purulent areas should be classified as dirty.

Procedure s…
Limb amputation - Amputation of hand (X08) OPCS-4
Procedure category: Limb amputation - Total or partial amputation or disarticulation of the upper or lower limbs, including digits Wound class: Amputations where the limb is ischaemic, or where dry gangrene is present should be classified as clean. Amputations through, or adjacent to, an area of acute inflammation (without pus or ulceration) should be classified as contaminated. Amputations adjacent to, or through necrotic ulcers and/or purulent areas should be classified as dirty.

Procedure s…
Limb amputation - Amputation of leg (X09) OPCS-4
Procedure category: Limb amputation - Total or partial amputation or disarticulation of the upper or lower limbs, including digits Wound class: Amputations where the limb is ischaemic, or where dry gangrene is present should be classified as clean. Amputations through, or adjacent to, an area of acute inflammation (without pus or ulceration) should be classified as contaminated. Amputations adjacent to, or through necrotic ulcers and/or purulent areas should be classified as dirty.

Procedure s…
Limb amputation - Amputation of toe (X11) OPCS-4
Procedure category: Limb amputation - Total or partial amputation or disarticulation of the upper or lower limbs, including digits Wound class: Amputations where the limb is ischaemic, or where dry gangrene is present should be classified as clean. Amputations through, or adjacent to, an area of acute inflammation (without pus or ulceration) should be classified as contaminated. Amputations adjacent to, or through necrotic ulcers and/or purulent areas should be classified as dirty.

Procedure s…
Penicillin allergy SNOMED CT
Reduction of long bone fracture (humerus, ulna, radius, femur, tibia and fibula) - Closed reduction of fracture of bone and internal fixation (Clean) (W24) OPCS-4
Procedure category: Reduction of long bone fracture (humerus, ulna, radius, femur, tibia and fibula) - Includes open or closed reduction of fracture of long bones requiring intramedullary or extramedullary fixation where an incision is made to establish fixation. Excludes: external fixation, hip replacement following fracture, fracture of the neck of femur or open reduction of small bones or intraarticular fracture.

Procedure subcategory: Closed reduction of fracture of bone and internal fixat…
Reduction of long bone fracture (humerus, ulna, radius, femur, tibia and fibula) - Other primary reduction of fracture of bone (Clean) (W22) OPCS-4
Procedure category: Reduction of long bone fracture (humerus, ulna, radius, femur, tibia and fibula) - Includes open or closed reduction of fracture of long bones requiring intramedullary or extramedullary fixation where an incision is made to establish fixation. Excludes: external fixation, hip replacement following fracture, fracture of the neck of femur or open reduction of small bones or intraarticular fracture.

Procedure subcategory: Other primary reduction of fracture of bone (Clean) (W2…
Reduction of long bone fracture (humerus, ulna, radius, femur, tibia and fibula) - Primary open reduction of fracture of bone and extramedullary fixation (Clean) (W20) OPCS-4
Procedure category: Reduction of long bone fracture (humerus, ulna, radius, femur, tibia and fibula) - Includes open or closed reduction of fracture of long bones requiring intramedullary or extramedullary fixation where an incision is made to establish fixation. Excludes: external fixation, hip replacement following fracture, fracture of the neck of femur or open reduction of small bones or intraarticular fracture.

Procedure subcategory: Primary open reduction of fracture of bone and extramed…
Reduction of long bone fracture (humerus, ulna, radius, femur, tibia and fibula) - Primary open reduction of fracture of bone and intramedullary fixation* (Clean) (W19) OPCS-4
Procedure category: Reduction of long bone fracture (humerus, ulna, radius, femur, tibia and fibula) - Includes open or closed reduction of fracture of long bones requiring intramedullary or extramedullary fixation where an incision is made to establish fixation. Excludes: external fixation, hip replacement following fracture, fracture of the neck of femur or open reduction of small bones or intraarticular fracture.

Procedure subcategory: Primary open reduction of fracture of bone and intramed…
Reduction of long bone fracture (humerus, ulna, radius, femur, tibia and fibula) - Secondary open reduction of fracture of bone (Clean) (W23) OPCS-4
Procedure category: Reduction of long bone fracture (humerus, ulna, radius, femur, tibia and fibula) - Includes open or closed reduction of fracture of long bones requiring intramedullary or extramedullary fixation where an incision is made to establish fixation. Excludes: external fixation, hip replacement following fracture, fracture of the neck of femur or open reduction of small bones or intraarticular fracture.

Procedure subcategory: Secondary open reduction of fracture of bone (Clean) (W…
Repair of neck of femur - Closed reduction of intracapsular fracture of the neck of femur and fixation using nail or (W24) OPCS-4
Procedure category: Repair of neck of femur - Includes hemiarthoplasty, that is, replacement of the head of femur only, including revision of a previous hemiarthroplasty (but excluding conversion to total joint replacement) and reduction of fracture of the neck of femur using pin and plate, dynamic hip screw or cannulated screw. The minimum wound class for repair of neck of femur surgery is clean.

Procedure subcategory: Closed reduction of intracapsular fracture of the neck of femur and fixati…
Repair of neck of femur - Other prosthetic replacement of head of femur (Clean) (W48) OPCS-4
Procedure category: Repair of neck of femur - Includes hemiarthoplasty, that is, replacement of the head of femur only, including revision of a previous hemiarthroplasty (but excluding conversion to total joint replacement) and reduction of fracture of the neck of femur using pin and plate, dynamic hip screw or cannulated screw. The minimum wound class for repair of neck of femur surgery is clean.

Procedure subcategory: Other prosthetic replacement of head of femur (Clean) (W48)
Repair of neck of femur - Prosthetic replacement of head of femur not using cement (Clean) (W47) OPCS-4
Procedure category: Repair of neck of femur - Includes hemiarthoplasty, that is, replacement of the head of femur only, including revision of a previous hemiarthroplasty (but excluding conversion to total joint replacement) and reduction of fracture of the neck of femur using pin and plate, dynamic hip screw or cannulated screw. The minimum wound class for repair of neck of femur surgery is clean.

Procedure subcategory: Prosthetic replacement of head of femur not using cement (Clean) (W47)
Repair of neck of femur - Prosthetic replacement of head of femur using cement (Clean) (W46) OPCS-4
Procedure category: Repair of neck of femur - Includes hemiarthoplasty, that is, replacement of the head of femur only, including revision of a previous hemiarthroplasty (but excluding conversion to total joint replacement) and reduction of fracture of the neck of femur using pin and plate, dynamic hip screw or cannulated screw. The minimum wound class for repair of neck of femur surgery is clean.

Procedure subcategory: Prosthetic replacement of head of femur using cement (Clean) (W46)
Repair of neck of femur - Reduction of fracture of the neck of femur (Clean) (W19) OPCS-4
Procedure category: Repair of neck of femur - Includes hemiarthoplasty, that is, replacement of the head of femur only, including revision of a previous hemiarthroplasty (but excluding conversion to total joint replacement) and reduction of fracture of the neck of femur using pin and plate, dynamic hip screw or cannulated screw. The minimum wound class for repair of neck of femur surgery is clean.

Procedure subcategory: Reduction of fracture of the neck of femur (Clean) (W19)
Small bowel surgery - Allotransplantation of ileum (G68) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Allotransplantation of ileum (G68)
Small bowel surgery - Artificial opening into jejunum (G60) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Artificial opening into jejunum (G60)
Small bowel surgery - Attention to artificial opening into ileum (Clean-Contaminated) (G75) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Attention to artificial opening into ileum (Clean-Contaminated) (G75)
Small bowel surgery - Attention to connection of ileum (Clean-Contaminated) (G73) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Attention to connection of ileum (Clean-Contaminated) (G73)
Small bowel surgery - Bypass of duodenum (Clean-Contaminated) (G51) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Bypass of duodenum (Clean-Contaminated) (G51)
Small bowel surgery - Bypass of ileum (Clean-Contaminated) (G71) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Bypass of ileum (Clean-Contaminated) (G71)
Small bowel surgery - Bypass of jejunum (Clean-Contaminated) (G61) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Bypass of jejunum (Clean-Contaminated) (G61)
Small bowel surgery - Creation of artificial opening into ileum (Clean-Contaminated) (G74) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Creation of artificial opening into ileum (Clean-Contaminated) (G74)
Small bowel surgery - Excision of duodenum (Clean-Contaminated) (G49) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Excision of duodenum (Clean-Contaminated) (G49)
Small bowel surgery - Excision of ileum (Clean-Contaminated) (G69) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Excision of ileum (Clean-Contaminated) (G69)
Small bowel surgery - Excision of jejunum* (Clean-Contaminated) (G58) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Excision of jejunum* (Clean-Contaminated) (G58)
Small bowel surgery - Extirpation of lesion of jejunum (Clean-Contaminated) (G59) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Extirpation of lesion of jejunum (Clean-Contaminated) (G59)
Small bowel surgery - Laparoscopically assisted approach to the abdominal cavity (Y75) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Laparoscopically assisted approach to the abdominal cavity (Y75)
Small bowel surgery - Open extirpation of lesion of duodenum (Clean-Contaminated) (G50) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Open extirpation of lesion of duodenum (Clean-Contaminated) (G50)
Small bowel surgery - Open extirpation of lesion of ileum (Clean-Contaminated) (G70) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Open extirpation of lesion of ileum (Clean-Contaminated) (G70)
Small bowel surgery - Operations on ulcer of duodenum (G52) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Operations on ulcer of duodenum (G52)
Small bowel surgery - Other open operations on duodenum (G53) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Other open operations on duodenum (G53)
Small bowel surgery - Other open operations on ileum (Clean-Contaminated) (G78) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Other open operations on ileum (Clean-Contaminated) (G78)
Small bowel surgery - Other open operations on jejunum (Clean-Contaminated) (G63) OPCS-4
Procedure category: Small bowel surgery - Incision, excision or anastomosis of small intestine, excluding procedures which involve anastomosis of small to large bowel.

Procedure subcategory: Other open operations on jejunum (Clean-Contaminated) (G63)
Spinal Surgery - Decompression of fracture of spine (Clean) (V44) OPCS-4
Procedure category: Spinal Surgery - Surgical procedures on the vertebral structures of the spine including the exploration or decompression of the spinal cord, the removal or resection of intervertebral discs, spinal fusion; and repair of fractures or deformities. The minimum wound class for spinal surgery is clean. Use an additional code to specify levels of spine (V55.1, V55.2, V55.3, V55.8 and V55.9 listed below).

Procedure subcategory: Decompression of fracture of spine (Clean) (V44)
Spinal Surgery - Decompression operations on unspecified spine (Clean) (V27) OPCS-4
Procedure category: Spinal Surgery - Surgical procedures on the vertebral structures of the spine including the exploration or decompression of the spinal cord, the removal or resection of intervertebral discs, spinal fusion; and repair of fractures or deformities. The minimum wound class for spinal surgery is clean. Use an additional code to specify levels of spine (V55.1, V55.2, V55.3, V55.8 and V55.9 listed below).

Procedure subcategory: Decompression operations on unspecified spine (Clean)…
Spinal Surgery - Excision of unspecified intervertebral disc (Clean) (V35) OPCS-4
Procedure category: Spinal Surgery - Surgical procedures on the vertebral structures of the spine including the exploration or decompression of the spinal cord, the removal or resection of intervertebral discs, spinal fusion; and repair of fractures or deformities. The minimum wound class for spinal surgery is clean. Use an additional code to specify levels of spine (V55.1, V55.2, V55.3, V55.8 and V55.9 listed below).

Procedure subcategory: Excision of unspecified intervertebral disc (Clean) (…
Spinal Surgery - Exploration of spine (Clean) (V49) OPCS-4
Procedure category: Spinal Surgery - Surgical procedures on the vertebral structures of the spine including the exploration or decompression of the spinal cord, the removal or resection of intervertebral discs, spinal fusion; and repair of fractures or deformities. The minimum wound class for spinal surgery is clean. Use an additional code to specify levels of spine (V55.1, V55.2, V55.3, V55.8 and V55.9 listed below).

Procedure subcategory: Exploration of spine (Clean) (V49)