Table 3 Frequency of applicable diagnosis and procedure codes searched across 192 patients

Abnormal serum enzyme, other or unspecified

ICD9: 790.5 & ICD10: R74.X

21

Alpha-1-antitrypsin deficiency

ICD9: 273.4 & ICD10:E88.01

≤ 3

Ascites

ICD9: 789.59 & ICD10: R18.8

6

Biliary atresia, congenital

ICD9: 751.61 & ICD10: Q44.2

≤ 3

Cholangitis

ICD9: 576.1 & ICD10: K83.0

0

Cholecystitis

ICD9: 575.x & ICD10: K81.x

≤ 3

Cholelithiasis

ICD9: 574.x & ICD10: K80.x

10

Cholelithiasis w/ obstruction

ICD9: 574.x & ICD10: K80.x

0

Cholesterolosis

ICD9: 576.6 & ICD10: K82.4

0

Disorders of bilirubin metabolism

ICD9: 277.4 & ICD10: E80.x

9

Elevation of AST, ALT, or LDH

ICD9: 790.4 & ICD10: R74.0

12

Endoscopic retrograde cholangiopancreatography (ERCP)

CPT: 43260-43278 & CPT: 0397T

0

Galactosemia

ICD9: 271.1 & ICD10: E74.21

0

Gamma-glutamyl transferase

CPT: 82977

25

Hepatitis, infectious

ICD9: 070.x, 091.62, 130.5, 573.x, & ICD10: B00,81, B15.x, B16.x, B17.x, B18.x, B19.x, B25.1, B26.81, B58.1, B94.2, O98.x, V02.x

≤ 3

Hepatitis, infectious, neonatal

ICD10: P35.3

0

Hepatitis, non-infectious

ICD9: 571.x, 573.3 & ICD10: K73.x, K75.x

6

Hepatomegaly

ICD9: 789.1 & ICD10: R16.x

6

Jaundice

ICD9: 782.4 & ICD10: R17

17

Jaundice, neonatal

ICD9: 774.x & ICD10: P58.x, P59.x

9

Laparoscopic cholecystectomy

CPT: 47562-47564

≤ 3

Lithotripsy

CPT: 50590

≤ 3

Magnetic resonance cholangiopancreatography (MRCP)

CPT: S8037

0

Obstruction of gallbladder or bile duct

ICD9: 575.2, 576.2 & ICD10: K82.0, K83.1

11

Other congenital malformation of bile ducts, liver or gallbladder

ICD9: 751.x & ICD10: Q44.x

≤ 3

Other disease of biliary tract

ICD9: 576.x & ICD10: K83.x, Q44.4, Q44.5

7

Other disease of gallbladder

ICD9: 575.X, 576.3 & ICD10: K82.X

5

Other liver diseases

ICD9: 571.x, 573.x, 751.x, & ICD10: K76.x, Q44., Q44.7

0

Pruritus

ICD9: 698.x & ICD10: L29.x

6

Toxic liver disease

ICD10: K71.x

0