The purpose of this paper is to develop a specification for comparative analysis of inpatient data for the five countries within IOBI. The inpatient analyses to be undertaken will focus specifically on very serious injuries, comprising a set of ICD 10 codes that identify injuries which from medical experience should be admitted anywhere. By focusing on serious injuries that should almost always be admitted it is possible to minimise the likely variation in the results between countries caused by varying admission thresholds.
Definition of serious injury
Two different sets of ICD 10 codes will be used to identify very serious injuries.
(i) Set 1 (Appendix A) will comprise those ICD 10 codes used as part of the serious admitted injury analyses conducted by IOBI in 2009
( http://www.injuryobservatory.net/iobi_inpatient_analysis.html
). This will allow comparisons to be made between the number of serious injuries reported in the 2009 analysis and the number reported as part of this current analysis. This list of serious injuries was defined by Professor Ronan Lyons, a medical expert in the area of injuries.
(ii) Set 2 (Appendix B) will comprise those ICD 10 codes used in the serious injury outcome indicators that were developed to monitor the New Zealand Injury Prevention Strategy
(NZIPS) [Statistics New Zealand (2011). Serious injury outcome indicators – technical
report. Wellington: Statistics New Zealand]. This report used the International
Classification of Diseases-based Injury Severity Score (ICISS) to define a serious injury.
Specifically, serious non-fatal injury cases were defined as hospitalisations with an ICISS score of less than or equal to 0.941. This is equivalent to selecting patients whose injuries give them a survival probability of 94.1% or worse – in other words, a probability of death (at admission) of at least 5.9%. This represents around 15% of all injury discharges (Cryer, C, Langley, J, & Stephenson, S (2004). Developing valid injury
indicators. A report for the New Zealand Injury Prevention Strategy (Injury Prevention
Research Unit Occasional Report OR 049). Dunedin: University of Otago).
Not every single ICD 10 code identified as defining a serious injury in the NZIPS report will be used as part of this IOBI analysis. Certain ICD 10 codes have been excluded, either due to them not being considered serious enough following further inspection by
Professor Ronan Lyons, or because they require the presence of a 5 th character ICD 10 code, which tends not to be frequently recorded in the UK. Also due to the inability to code to 5 characters some ICD 10 codes listed in the NZIPS report are only included in this IOBI analysis at the 4 character level. A list of the ICD 10 codes used in the NZIPS report but excluded for this IOBI analysis is provided in Appendix D, whilst a list of the

ICD 10 codes used in the NZIPS report but changed to 4 characters for this IOBI analysis is provided in Appendix E.
It should additionally be noted that several ICD 10 codes have been added to the NZIPS
ICD 10 list that will be used in this IOBI analysis. These codes, listed in Appendix F, have been included because it is illogical for them to be left out given the seriousness of the injury.
Unit of hospital activity
Inpatient spells will be used by all countries as the unit of hospital activity in this analysis. A caveat will be added to the final output file warning all readers that the way in which episodes of care are amalgamated to spells within the healthcare system of each country is likely to vary, and that, consequently, caution should be exercised when interpreting the cross-country results.
Time period
Inpatient spells will be searched for during the period 01.01.2011 and 31.12.2011
Type of admission
Only emergency hospital admissions will be considered.
Dealing with admissions with zero length of stay
All admissions will be considered irrespective of length. Research undertaken in Wales in 2009 showed that excluding hospitalisations with a zero length of stay led to 4% of deaths also being excluded (090825 inpatient analysis specification 7 th draft). Admissions with a zero length of stay were included in both the 2009 IOBI analysis and the New Zealand ICISS analysis (page 18 of
Developing valid injury indicators report).
Diagnosis criteria
For the repeat of the IOBI analysis undertaken in 2009 the S/T codes listed in Appendix A should be searched for in any diagnosis position. For the new analysis based on the ICD 10 codes derived in
New Zealand the S/T codes listed in Appendix B should also be searched for in any diagnosis position. For both of the analyses, the external cause/intent categories should be searched for in
any diagnostic position. In addition, for both of the analyses an inpatient admission will only be
counted if it has both the S/T diagnosis AND the external cause/intent diagnosis.

By insisting that an admission must be associated with both an S/T and external cause/intent diagnosis it follows that the final counts will be influenced by the completeness of diagnosis coding. i.e. if there are a large number of admissions with an S/T code but no external cause/intent code, and vice-versa. For this reason it is important for coding completeness to be assessed within each country. To achieve this each country should count the number of emergency inpatient admissions taking place in 2011 which have an S/T ICD 10 code in any diagnosis position but which don’t have an
V/W/X/Y ICD 10 code in any diagnostic position, and vice-versa.
Cause/intent categories reported
The same external cause/intent categories will be used as in the 2009 analysis. An all injury figure will also be reported. The external cause categories are:
Cut/pierce
Drowning
Falls
Fire/hot object or substance
Firearm
Motor vehicle traffic crash (MVTC)
Poisoning
Struck by/against
Other unspecified
The intent categories are:
Unintentional
Self-harm
Assault
Other/unspecified/undetermined
The ICD 10 codes that will be used to identify the above categories are listed in Appendix C.
Order of precedence
An order of precedence ranking should be used to determine the primary cause and/or intent in cases where admissions were assigned multiple cause and intent categories.
The precedence list that should be applied in terms of the external cause of the admissions is: 1 –
MVTC; 2 – Fall; 3 – Cut; 4 – Drowning, 5 – Fire; 6 – Firearm; 7 – Struck by/against; 8 – Poisoning; 9 –
Other and unspecified.
With regards to the intent associated with each admission the order of precedence ranking that should be used is: 1 – Self-harm; 2 – Assault; 3 – Other/unspecified/undetermined; 4 –
Unintentional.

The use of these precedence lists is considered necessary to ensure that only the most likely cause/intent applicable to each admission is counted. However, their use additionally means that the true incidence of admissions associated with specific causes/intents further down the rankings may be underreported.
Output
The required output comprises counts of serious inpatient admissions by 5 year age group and gender. In addition, mid-year population estimates for 2011 by 5 year age group and gender need to be provided. The counts of inpatient admissions and population estimates will then be used to derive European Age Standardised Rates (EASR).
Note: the UK census in 2011 & re-basing of population denominators will need to be taken into account when comparing the results of this analysis with the previous IOBI analysis undertaken in
2009.

Appendix A: Set 1 list of ICD 10 codes to be applied in this IOBI analysis based on those ICD 10 codes used as part of the serious admitted injury analyses conducted by IOBI in 2009
( http://www.injuryobservatory.net/iobi_inpatient_analysis.html
).
The following S/T ICD 10 codes were used as part of the serious admitted injury analyses conducted by IOBI in 2009 ( http://www.injuryobservatory.net/iobi_inpatient_analysis.html
). They will be used again during this IOBI analysis in order to allow comparisons to be made between the number of serious injuries reported in the 2009 analysis and the number reported as part of this current analysis. This list of serious injuries was defined by Professor Ronan Lyons, a medical expert in the area of injuries.
The following ICD 10 codes should be searched for in any diagnostic position:
S02 (excluding 02.2, 02.5) Fracture of skull and facial bones
S06
S12
Intracranial injury
Fracture of neck
S14 Injury of nerves and spinal cord at neck level
S22.0, 22.1, 22.2 Fracture of thoracic vertebra and sternum
S22.5
S24
Flail chest
Injury of nerves and spinal cord at thorax level
S25, 26, 27, 28 Injury of blood vessels of thorax, injury of heart, injury of other unspecified intrathoracic organs, crushing injury of thorax and traumatic amputation of part of thorax
S32 (excluding 32.2) Fracture of lumbar spine and pelvis
S34 (34.0 to 34.5) Injury of nerves and lumbar spinal cord at abdomen, lower back and pelvis level.
S35 Injury of blood vessels at abdomen, lower back and pelvis level
S36, 37, 38
S48, 58, 68
Injury of intra-abdominal organs, injury of pelvic organs, crushing injury and traumatic amputation of part of abdomen, lower back and pelvis
Traumatic amputation of shoulder and upper arm, forearm, wrist and hand

S72 (72.0 to 72.3) Fracture of femur (neck and shaft)
S73.0 Dislocation of hip
S78, 88, 98 Traumatic amputation of hip and thigh, lower leg, ankle and foot
T02
T04
T05
T06
Fractures involving multiple body regions
Crushing injuries involving multiple body regions
Traumatic amputations involving multiple body regions
Other injuries involving multiple body regions, not elsewhere classified

S063
S064
S065
S066
S068
S069
S026
S027
S029
S040
S061
S062
Appendix B: Set 2 list of ICD 10 codes to be applied in this IOBI analysis based on the ICD 10 codes
used in the New Zealand serious injury outcome indicators report [Cryer, C, Langley, J, &
Stephenson, S (2004). Developing valid injury indicators. A report for the New Zealand Injury
Prevention Strategy (Injury Prevention Research Unit Occasional Report OR 049). Dunedin:
University of Otago]
The following ICD 10 codes were used in the serious injury outcome indicators that were developed to monitor the New Zealand Injury Prevention Strategy (NZIPS) [Statistics New Zealand (2011).
Serious injury outcome indicators – technical report. Wellington: Statistics New Zealand]. As mentioned on page 1 not every single ICD 10 code used in the above report will be applied in this
IOBI analysis. Certain ICD 10 codes have been excluded from the list below, either due to them not being considered serious enough following further inspection by Professor Ronan Lyons, or because they require the presence of a 5 th character ICD 10 code, which tends not to be frequently recorded in the UK (Appendix D). Also due to the inability to code to 5 characters some ICD 10 codes in the below list are only included at the 4 character level (Appendix E).
The following ICD 10 codes should be searched for in any diagnostic position.
S020
S021
Fracture of vault of skull
Fracture of base of skull
Fracture of mandible, part unspecified
Multiple fractures involving skull and facial bones
Fracture of skull and facial bones, part unspecified
Injury of optic nerve and pathways
Traumatic cerebral oedema
Diffuse brain injury
Focal brain injury
Epidural haemorrhage
Traumatic subdural haemorrhage
Traumatic subarachnoid haemorrhage
Other intracranial injuries
Intracranial injury, unspecified

S179
S220
S224
S225
S231
S241
S141
S142
S150
S151
S153
S158
S070
S110
S120
S121
S122
S129
S131
S140
S243
S250
S251
S252
S254
S255
S257
Crushing injury of face
Open wound involving larynx and trachea
Fracture of first cervical vertebra
Fracture of second cervical vertebra
Fracture of other specified cervical vertebra
Fracture of neck, part unspecified
Dislocation of cervical vertebrae
Concussion and oedema of cervical spinal cord
Other and unspecified injuries of cervical spinal cord
Injury of nerve root of cervical spine
Injury of carotid artery
Injury of vertebral artery
Injury of internal jugular vein
Injury of other blood vessels at neck level
Crushing injury of neck, part unspecified
Fracture of thoracic vertebra
Multiple rib fractures
Flail chest
Dislocation of thoracic vertebrae
Other and unspecified injuries of thoracic spinal cord
Injury of peripheral nerves of thorax
Injury of thoracic aorta
Injury of innominate or subclavian artery
Injury of superior vena cava
Injury of pulmonary blood vessels
Injury of intercostal blood vessels
Injury of multiple blood vessels of thorax

S358
S359
S360
S361
S362
S365
S320
S328
S332
S351
S352
S354
S268
S269
S271
S272
S273
S278
S279
S318
S367
S368
S369
S370
S373
S379
S427
Other injuries of heart
Injury of heart, unspecified
Traumatic haemothorax
Traumatic haemopneumothorax
Other injuries of lung
Injury of other specified intrathoracic organs
Injury of unspecified intrathoracic organ
Open wound of other and unspecified parts of abdomen
Fracture of lumbar vertebra
Fracture of other and unspecified parts of lumbar spine and pelvis
Dislocation of sacroiliac and sacrococcygeal joint
Injury of inferior vena cava
Injury of coeliac or mesenteric artery
Injury of renal blood vessels
Injury of other blood vessels at abdomen, lower back and pelvis level
Injury of unspecified blood vessel at abdomen, lower back and pelvis level
Injury of spleen
Injury of liver or gallbladder
Injury of pancreas
Injury of colon
Injury of multiple intra-abdominal organs
Injury of other intra-abdominal organs
Injury of unspecified intra-abdominal organ
Injury of kidney
Injury of urethra
Injury of unspecified pelvic organ
Multiple fractures of clavicle, scapula and humerus

S781
S789
S880
S881
S889
S933
S723
S724
S727
S728
S729
S780
S429
S443
S450
S481
S489
S720
S721
S722
S983
T016
T018
T019
T042
T063
T09
Fracture of shoulder girdle, part unspecified
Injury of axillary nerve
Injury of axillary artery
Traumatic amputation at level between shoulder and elbow
Traumatic amputation of shoulder and upper arm, level unspecified
Fracture of neck of femur
Pertrochanteric fracture
Subtrochanteric fracture
Fracture of shaft of femur
Fracture of lower end of femur
Multiple fractures of femur
Fractures of other parts of femur
Fracture of femur, part unspecified
Traumatic amputation at hip joint
Traumatic amputation at level between hip and knee
Traumatic amputation of hip and thigh, level unspecified
Traumatic amputation at knee level
Traumatic amputation at level between knee and ankle
Traumatic amputation of lower leg, level unspecified
Dislocation of other and unspecified parts of foot
Traumatic amputation of other parts of foot
Open wounds involving multiple regions of upper limb(s) with lower limb(s)
Open wounds involving other combinations of body regions
Multiple open wounds, unspecified
Crushing injuries involving multiple regions of upper limb(s)
Injuries of blood vessels involving multiple body regions
Other injuries of spine and trunk, level unspecified

T280
T281
T290
T293
T311
T312
T212
T213
T223
T264
T270
T271
T10
T11
T13
T14
T17
T203
T210
T211
T313
T314
T315
T316
T317
T318
T319
Fracture of upper limb, level unspecified
Other injuries of upper limb, level unspecified
Other injuries of lower limb, level unspecified
Injury of unspecified body region
Foreign body in respiratory tract
Full thickness burn of head and neck
Burn of unspecified degree of trunk
Burn of first degree of trunk
Burn of second degree of trunk
Burn of third degree of trunk
Burn of third degree of shoulder and upper limb, except wrist and hand
Burn of eye and adnexa, part unspecified
Burn of larynx and trachea
Burn involving larynx and trachea with lung
Burn of mouth and pharynx
Burn of oesophagπus
Burns of multiple regions, unspecified thickness
Burns of multiple regions, at least one burn of full thickness mentioned
Burns involving 10–19% of body surface
Burns involving 20–29% of body surface
Burns involving 30–39% of body surface
Burns involving 40–49% of body surface
Burns involving 50–59% of body surface
Burns involving 60–69% of body surface
Burns involving 70–79% of body surface
Burns involving 80–89% of body surface
Burns involving 90% or more of body surface

T462
T467
T493
T504
T603
T68
T71
Poisoning by other antidysrhythmic drugs, not elsewhere classified
Poisoning by peripheral vasodilators
Poisoning by emollients, demulcents and protectants
Poisoning by drugs affecting uric acid metabolism
Toxic effect of herbicides and fungicides
Hypothermia
Asphyxiation

Appendix C – Cause/intent categories and ICD 10 codes
All injury category

All injuries - ICD 10 code in the range V01-V99, W00-W99, X00-X99,Y00-Y369 in any diagnostic position
External cause categories

Cut/pierce - ICD 10 code in the range 'W25'-'W299', 'W45'-'W459', 'X78'-'X789', 'X99'-'X999',
'Y28'-'Y289', 'Y354' in any diagnostic position

Drowning – ICD 10 code in the range ‘W65’-‘W749’, ‘X71’-‘X719’, ‘X92’-‘X929’, ‘Y21’-‘Y219’ in any diagnostic position

Falls - ICD 10 code in the range 'W00'-'W199', 'X80'-'X809', 'Y01'-'Y019', 'Y30'-'Y309' in any diagnostic position

Fire/hot object or substance – ICD 10 code in the range ‘X00’-‘X199’, ‘X76’-‘X779’, ‘X97’-
‘X989’, ‘Y26’-‘Y279’, ‘Y363’ in any diagnostic position

Firearm related - ICD 10 code in the range 'W32'-'W349', 'X72'-'X749', 'X93'-'X959', 'Y22'-
'Y249', 'Y350' in any diagnostic position

MVTC - ICD 10 code in the range 'V304'-'V309', 'V314'-'V319', 'V324'-'V329', 'V334'-'V339',
'V344'-'V349', 'V354'-'V359', 'V364'-'V369', 'V374'-'V379', 'V384'-'V389', 'V394'-'V399',
'V404'-'V409', 'V414'-'V419', 'V424'-'V429', 'V434'-'V439', 'V444'-'V449', 'V454'-'V459',
'V464'-'V469', 'V474'-'V479', 'V484'-'V489', 'V494'-'V499', 'V504'-'V509', 'V514'-'V519',
'V524'-'V529', 'V534'-'V539', 'V544'-'V549', 'V554'-'V559', 'V564'-'V569', 'V574'-'V579',
'V584'-'V589', 'V594'-'V599', 'V604'-'V609', 'V614'-'V619', 'V624'-'V629', 'V634'-'V639',
'V644'-'V649', 'V654'-'V659', 'V664'-'V669', 'V674'-'V679', 'V684'-'V689', 'V694'-'V699',
'V704'-'V709', 'V714'-'V719', 'V724'-'V729', 'V734'-'V739', 'V744'-'V749', 'V754'-'V759',
'V764'-'V769', 'V774'-'V779', 'V784'-'V789', 'V794'-'V799', 'V830'-'V833', 'V840'-'V843',
'V850'-'V853', 'V860'-'V863', 'V203'-'V209', 'V213'-'V219', 'V223'-'V229', 'V233'-'V239',
'V243'-'V249', 'V253'-'V259', 'V263'-'V269', 'V273'-'V279', 'V283'-'V289', 'V294'-'V299',
'V123'-'V129', 'V133'-'V139', 'V143'-'V149', 'V194'-'V196', 'V021'-'V029', 'V031'-'V039',
'V041'-'V049', 'V092', 'V803'-'V805', 'V811', 'V821', 'V870'-'V878', 'V892' in any diagnostic position


Poisoning - ICD 10 code in the range 'X40'-'X499', 'X60'-'X699', 'X85'-'X909', 'Y10'-'Y199',
'Y352' in any diagnostic position

Struck by/against - ICD 10 code in the range 'W20'-'W229', 'W50'-'W529', 'X79'-'X799', 'Y00'-
'Y009', 'Y04'-'Y049', 'Y29'-'Y299', 'Y353' in any diagnostic position

Other/unspecified – remaining ICD 10 codes not mentioned above but within V01-V99, W00-
W99, X00-X99, and Y01-Y369 in any diagnostic position
Intent categories

Unintentional - ICD 10 code in the range 'V01'-'X599', 'Y85'-'Y869' in any diagnostic position

Self-harm - ICD 10 code in the range 'X60'-'X849', 'Y870' in any diagnostic position

Assault - ICD 10 code in the range 'X85'-'Y099', 'Y871' in any diagnostic position

Other/unspecified/undetermined - remaining ICD 10 codes not mentioned above but within
V01-V99, W00-W99, X00-X99, and Y01-Y369 in any diagnostic position

Appendix D - List of the ICD 10 codes used in the NZIPS report but excluded for this IOBI analysis
List of NZIPS ICD 10 codes excluded from this IOBI analysis due to them not being considered serious enough (following further inspection by Professor Ronan Lyons)
S0090
S100
S1098
Superficial injury of head, part unspecified, unspecified
Contusion of throat
Superficial injury of neck, part unspecified, other
S529
S6082
S9088
T0901
T1101
T1305
Fracture of forearm, part unspecified
Blister of wrist and hand
Other superficial injuries of ankle and foot
Abrasion of trunk, level unspecified
Abrasion of upper limb, level unspecified
Contusion of lower limb, level unspecified
T139
T1401
T337
Unspecified injury of lower limb, level unspecified
Abrasion of unspecified body region
Superficial frostbite of knee and lower leg
List of NZIPS ICD 10 codes excluded from this IOBI analysis because they require the presence of a 5 th character ICD 10 code, which tends not to be frequently recorded in the UK
S0139
S0181
S0603
S0605
S2231
S1470
Open wound of other and multiple parts of ear and auditory structures
Open wound (of any part of head) communicating with a fracture
Loss of consciousness of moderate duration (30 minutes to 24 hours)
Loss of consciousness of prolonged duration (more than 24 hours), without return to pre-existing conscious level
Fracture of first rib
Functional spinal cord injury, cervical level unspecified

S1471
S1472
S1474
S2472
S2477
S3475
Functional spinal cord injury, C1
Functional spinal cord injury, C2
Functional spinal cord injury, C4
Functional spinal cord injury, T2/T3
Functional spinal cord injury, T12
Functional spinal cord injury, L5

S1312
S1315
S1317
S1410
S1411
S1412
S0633
S0634
S1102
S1221
S1222
S1311
S1413
S1500
S1503
Appendix E - List of NZIPS ICD 10 codes included in this IOBI analysis but only at the 4 character level
Note: the 4 character version of the ICD 10 codes listed below already appear in Appendix B, the Set
2 list of ICD 10 codes used in this IOBI analysis.
S0260
S0620
S0621
S0622
Fracture of mandible, part unspecified
Diffuse cerebral and cerebellar brain injury, unspecified
Diffuse cerebral contusions
Diffuse cerebellar contusions
S0623
S0628
S0630
S0632
Multiple intracerebral and cerebellar haematomas
Other diffuse cerebral and cerebellar injury
Focal cerebral and cerebellar injury, unspecified
Focal cerebellar contusion
Focal cerebral haematoma
Focal cerebellar haematoma
Open wound of trachea
Fracture of third cervical vertebra
Fracture of fourth cervical vertebra
Dislocation of C1/C2 cervical vertebrae
Dislocation of C2/C3 cervical vertebrae
Dislocation of C5/C6 cervical vertebrae
Dislocation of C7/T1 cervicothoracic vertebrae
Injury of cervical spinal cord, unspecified
Complete lesion of cervical spinal cord
Central cord syndrome (incomplete cord injury) of cervical spinal cord
Other incomplete cord syndrome of cervical spinal cord
Injury of carotid artery, unspecified
Injury of internal carotid artery

S2412
S2682
S2683
S2688
S2731
S2732
S2738
S2781
S2788
S3181
S3200
S2200
S2201
S2240
S2241
S2315
S2316
S2410
S2411
S3283
S3289
S3603
S3604
S3608
S3610
S3612
S3615
Fracture of thoracic vertebra, level unspecified
Fracture of thoracic vertebra, T1 and T2 level
Multiple rib fractures, unspecified
Multiple rib fractures, involving first rib
Dislocation of T9/T10 and T10/T11 thoracic vertebrae
Dislocation of T11/T12 thoracic vertebrae
Injury of thoracic spinal cord unspecified
Complete lesion of thoracic spinal cord
Incomplete cord syndrome of thoracic spinal cord
Laceration of heart without penetration into heart chamber
Laceration of heart with penetration into heart chamber
Other injuries of heart
Contusion and haematoma of lung
Laceration of lung
Other and unspecified injuries of lung
Injury of diaphragm
Injury of other specified intrathoracic organs and structures
Open wound (of any part of lower back and pelvis) communicating with a fracture
Fracture of lumbar vertebra, level unspecified
Fracture of pelvis, part unspecified
Other and multiple pelvic fractures
Laceration of spleen extending into parenchyma
Massive parenchymal disruption of spleen
Other injury of spleen
Injury of liver, unspecified
Laceration of liver, unspecified
Major laceration of liver

S7203
S7205
S7210
S7211
S7243
S9330
T1420
T2231
S3617
S3618
S3629
S3659
S3683
S3703
S3733
S7200
T2232
T3110
Injury of gallbladder
Injury of bile duct
Injury of other and multiple parts of pancreas
Injury of other and multiple parts of colon
Injury of retroperitoneum
Complete disruption of kidney parenchyma
Injury of prostatic urethra
Fracture of neck of femur, part unspecified
Fracture of subcapital section of femur
Fracture of base of neck of femur
Fracture of trochanteric section of femur, unspecified
Fracture of intertrochanteric section of femur
Supracondylar fracture of femur
Dislocation of foot, part unspecified
Fracture of unspecified body region, closed
Full thickness burn of shoulder and upper limb, except wrist and hand, forearm and elbow
Full thickness burn of shoulder and upper limb, except wrist and hand, upper arm and shoulder region
Burns involving 10–19% of body surface, less than 10% full thickness or unspecified

S889
T212
T312
T313
T314
T315
S723
S727
S728
S780
S789
S880
T316
T317
T318
T319
Appendix F – List of ICD 10 codes that have been added to the list of NZIPS ICD 10 codes used in this IOBI analysis
In addition to certain NZIPS ICD 10 codes being excluded from this analysis several ICD 10 codes have been added to the NZIPS ICD 10 list that will be used in this IOBI analysis (Appendix B). These codes have been added because it is illogical for them to be left out given the seriousness of the injury.
S722 Subtrochanteric fracture
Fracture of shaft of femur
Multiple fractures of femur
Fractures of other parts of femur
Traumatic amputation at hip joint
Traumatic amputation of hip and thigh, level unspecified
Traumatic amputation at knee level
Traumatic amputation of lower leg, level unspecified
Burn of second degree of trunk
Burns involving 20–29% of body surface
Burns involving 30–39% of body surface
Burns involving 40–49% of body surface
Burns involving 50–59% of body surface
Burns involving 60–69% of body surface
Burns involving 70–79% of body surface
Burns involving 80–89% of body surface
Burns involving 90% or more of body surface