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Table 1 ICD codes for inclusion criteria

From: Does medical disparity exist while treating severe mental illness patients with acute appendicitis in emergency departments? A real-world database study

 

ICD-9-CM code

ICD-10-CM code

Acute Appendicitis

 Perforation

540.0; 540.1

K352; K353

 Non-perforation

541; 542

K35; K3580; K3589; K36; K37

SMIa

 Depression

296.20–26; 296.30–36, 296.82, 298.0

F32.0–5; F32.9; F33.0–4; F33.9; F32.8

 Schizophrenia

295; 297; 298.3–4; 298.9

F20.0–3; F20.5; F20.8–9; F25.0–1; F25.8–9

F22–24; F28–29

 Bipolar disorder

296.00–16; 296.40–81; 296.89–99; 298.1

F30.1–4; F30.8–9; F31.0–9; F28

  1. aSMI Severe mental illness
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BMC Psychiatry

ISSN: 1471-244X

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