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Table 1 ICD-9 codes for defining frailty and complications

From: Impact of frailty on inpatient outcomes in thyroid cancer surgery: 10-year results from the U.S. national inpatient sample

Variable

Diagnoses

ICD-9

Frailty

 Malnutrition

Nutritional marasmus

Other severe protein-calorie malnutrition

261, 262, 263.8, 263.9, V77.2,

 Dementia

Senile dementia with delusional or depressive features

Senile dementia with delirium

290.20, 290.21, 290.3

 Severe vision impairment

Profound impairment, both eyes

Moderate or severe impairment, better eye/lesser eye: profound

369.0, 369.00, 369.01, 369.03, 369.04, 369.06, 369.07, 369.08,

 Decubitus ulcer

Decubitus ulcer

707.0, 707.00, 707.01, 707.02, 707.03, 707.04, 707.05, 707.06, 707.07, 707.09, 707.20, 707.21, 707.22, 707.23, 707.24, 707.25

 Urinary incontinence

Incontinence without sensory awareness

Continuous leakage

788.34, 788.37

 Loss of weight

Abnormal loss of weight and underweight

Feeding difficulties and mismanagement

783.2, 783.21, 783.22, 783.3

 Fecal incontinence

Fecal incontinence

787.6

 Social support needs

Lack of housing

Inadequate housing

Inadequate material resources

V60.0, V60.1

V60.2

 Difficulty in walking

Difficulty in walking

Abnormality of gait

719.7, 781.2

 Fall

Fall on stairs or steps

Fall from wheelchair

E880, E880.0, E880.1, E880.9, E884.3

Surgical complications

 Tracheostomy

519.0, 519.00, 519.01, 19.02, 519.09

 Hoarseness

784.4, 784.40, 784.41, 84.42, 784.43, 784.44, 784.49, 784.51

 Hemorrhage, hematoma, or seroma

285.1, 998.1, 998.11, 998.12, 998.13

 Cystitis

595, 595.0, 595.3, 595.4, 595.8, 595.89, 595.9

 Hypocalcemia

275.41, 275.49

 Vocal cord paresis or paralysis

478.3, 478.30, 478.31, 478.32, 478.33, 478.34

 Wound complications

998.3, 998.30, 998.31, 998.32, 998.33, 998.83

 Technical complications

998.2, 998.4, 998.5, 998.51, 998.59, 998.6, 998.7, 998.8, 998.81, 998.89, 998.9

Medical complications

 Shock

998.0

 Cardiovascular

410.0–410.9, 411.1, 411.8, 415.0, 420.0, 420.9, 421.0, 421.1, 421.9, 422.0, 422.9, 427.0–427.5, 428.0–428.9, 451.11, 997.00, 997.01, 997.02, 997.09, 997.2, 997.79

 Pulmonary

512.1, 518.4, 518.81, 518.82, 518.84, 997.3, 997.31, 97.32, 997.39

 Acute kidney injury

584.5–584.9

 Pneumonia

480,480.0, 480.1, 480.2, 480.3, 480.8, 480.9, 481, 482, 482.0, 482.1, 482.3, 482.30, 482.31, 482.32, 482.39, 482.40, 482.41, 482.42, 482.49, 482.8, 482.81, 482,82, 482.83, 482.84, 482.89, 482.9, 483, 483.1, 483.8, 484, 484.1, 484.3, 484.5, 484.6, 484.7, 484.8, 485, 487.0, V12.61, 507.0, 514, 518.4, 518.5, 516, 516.8, 997.31

 Infection / Sepsis

038.0–038.9, 519.2, 785.52, 995.9, 996.31, 996.62, 996.64, 999.3, 998.5, 998.51, 998.59, 599.0, V13.02