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Table 1 ICD code groups used to identify admissions related to complications of injection drug use

From: Hospital admissions and mortality due to complications of injection drug use in two hospitals in Regina, Canada: retrospective chart review

ICD code group ICD-10-CA codes Description of the ICD-10-CA codes
Substance use F11, F13, F14, F15, F16, F19 Mental and behavioral disorders due to opioids, sedatives/hypnotics, cocaine, other stimulants, hallucinogens, multiple drug use, and other psychoactive substances
Drug withdrawal or overdose F10.3, F10.4, F11.3, F11.4, F12.3, F12.4, F13.3, F13.4, F14.3, F14.4, F15.3, F15.4, F16.3, F16.4, F17.3, F17.4, F18.3, F18.4, F19.3, F.19.4, T40, T42, T43, Y11-13 Withdrawal from various substances, overdose, or poisoning
Infectious sequelae of injection drug use A40, A41, B24, B37.6, G06, G07, I26, I28, I33, I38, I39, I64, I65, I66, I71, I72, I74, I80, I81, I82, J85, K61, K65, K75, L02, L03, L04, L08, M00, M01, M46, M65, M86 Infectious sequela: sepsis, HIV disease, intracranial and intraspinal abscess, pulmonary embolism, other diseases of pulmonary vessels, endocarditis, stroke, occlusion or stenosis of precerebral arteries, cerebral artery occlusion, aortic aneurysm, other aneurysm, arterial embolism and thrombosis, phlebitis and thrombophlebitis, portal vein thrombosis and other venous thrombosis, embolism, lung/mediastinal abscess, anal or rectal region abscess, peritonitis, other inflammatory liver disease, cutaneous abscess, furuncle, carbuncle, cellulitis, acute lymphadenitis, other skin and subcutaneous tissue infection, pyogenic arthritis, inflammatory spondylopathies, abscess of tendon sheath, osteomyelitis
Methadone use Z92.28 Personal history of other drug therapy (methadone)
Talc pneumoconiosis J62.0 Pneumoconiosis due to Talc dust
  1. Admissions were included if the discharge summary had at least one ICD code from ICD groups listed:
  2. Substance Use AND Withdrawal or Overdose
  3. Substance Use AND Infectious Sequela
  4. Methadone Use AND Withdrawal or Overdose
  5. Methadone Use AND Infectious Sequela
  6. Talc Pneumoconiosis