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Table 1 Effects of transition to ICD-10-CM on observed injury severity, mechanism of injury, and traumatic brain injury-related hospitalization trends among young adults

From: Impact of ICD-9-CM to ICD-10-CM coding transition on trauma hospitalization trends among young adults in 12 states

Ā 

Initial level (Jan 2011)

Monthly trend before transition

Level change after transition

Trend change after transition

Severity of Injury, % (ICDPIC-R Version 1)a

ā€ƒMild, GEMmin (ISS: 0ā€“8)

50.1

āˆ’0.12*

9.9*

0.01

ā€ƒModerate, GEMmin (ISS: 9ā€“15)

32.6

0.04ā€”

āˆ’9.2*

āˆ’0.04

ā€ƒSevere, GEMmin (ISSā€‰>ā€‰15)

17.6

0.07*

āˆ’0.4

0.04

ā€ƒMild, GEMmax (ISS: 0ā€“8)

50.0

āˆ’0.12*

7.3*

0.01

ā€ƒModerate, GEMmax (ISS: 9ā€“15)

32.5

0.05ā€”

āˆ’12.8*

āˆ’0.06

ā€ƒSevere, GEMmax (ISSā€‰>ā€‰15)

17.7

0.06*

6.0*

0.07ā€”

Severity of Injury, % (Updated ICDPIC-R)a, b

ā€ƒMild, GEMmin (ISS: 0ā€“8)

50.0

āˆ’0.12*

4.0*

āˆ’0.03

ā€ƒModerate, GEMmin (ISS: 9ā€“15)

32.6

0.04ā€”

āˆ’4.3*

āˆ’0.02

ā€ƒSevere, GEMmin (ISSā€‰>ā€‰15)

17.6

0.07*

0.6

0.07ā€”

ā€ƒMild, GEMmax (ISS: 0ā€“8)

50.0

āˆ’0.12*

1.2

āˆ’0.03

ā€ƒModerate, GEMmax (ISS: 9ā€“15)

32.6

0.04ā€”

āˆ’7.7*

āˆ’0.05

ā€ƒSevere, GEMmax (ISSā€‰>ā€‰15)

17.5

0.07*

6.7*

0.10ā€”

Mechanism of Injury, Rate per 100,000c

ā€ƒCut/Pierce

1.28

āˆ’0.006*

āˆ’0.04

0.005ā€ 

ā€ƒDrowning

0.01

0.000

0.004ā€ 

0.000

ā€ƒFall

3.52

āˆ’0.008*

āˆ’0.02

0.002

ā€ƒFire/Burn

0.61

āˆ’0.001ā€ 

āˆ’0.23*

āˆ’0.001

ā€ƒFirearm

1.17

0.002

0.12ā€”

āˆ’0.001

ā€ƒMachinery

0.29

āˆ’0.002*

0.04ā€ 

0.001

ā€ƒMVT

5.50

āˆ’0.003

āˆ’ā€‰0.03

āˆ’0.007

ā€ƒPedal Cyclist, Other

0.30

āˆ’0.001*

āˆ’0.05ā€”

āˆ’0.001

ā€ƒPedestrian, Other

0.04

0.000

0.12*

āˆ’0.002ā€”

ā€ƒTransportation, Other

0.87

āˆ’0.004*

āˆ’0.11ā€ 

0.001

ā€ƒNatural/Environmental

0.16

āˆ’0.001*

āˆ’0.09*

0.000

ā€ƒStruck by/Against

1.54

āˆ’0.007*

āˆ’0.01

0.007ā€ 

ā€ƒSuffocation

0.01

0.000

0.07*

āˆ’0.001*

ā€ƒOther specified

0.38

āˆ’0.001*

āˆ’0.11*

0.001

ā€ƒUnspecified

0.54

āˆ’0.001ā€”

0.25*

āˆ’0.009*

TBI, Rate per 100,000d

4.54

āˆ’0.017*

0.60*

0.002

ā€ƒSkull Fracture

1.44

āˆ’0.002

āˆ’ā€‰0.04

āˆ’0.001

ā€ƒOther/Unspecified Fracture of Skull/Facial Bones

0.15

0.000

0.36*

āˆ’0.004*

ā€ƒIntracranial Injury

4.06

āˆ’0.016*

0.60*

0.004

  1. ISS Injury Severity Score, GEM General equivalence mappings for linking ICD-9 to ICD-10 codes, TBI Traumatic brain injury
  2. a Excludes patients with any burn injury diagnosis
  3. b ICDPIC-R Updated to recognize ICD-10-CM codes with 7th characters of ā€œBā€Ā orĀ ā€œCā€ and FY 2017, 2018 updates
  4. c Excludes patients without an ECOI code
  5. d Subcategories are not mutually exclusive
  6. *, pā€‰<ā€‰.0001; ā€ , pā€‰<ā€‰.05; ā€”, pā€‰<ā€‰.01
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Injury Epidemiology

ISSN: 2197-1714