Validating administrative data for the detection of adverse events in older hospitalized patients

Figures & data

Table 1 Performance characteristics of diagnostic codes for adverse events compared with expert health record reviews

Type of adverse event	Sensitivity (95% CI)	Specificity (95% CI)
Pressure ulcera	0.87 (0.72–0.95)	0.96 (0.80–0.99)
Fall-related injurya	0.96 (0.87–0.99)	0.91 (0.74–0.98)
Adverse drug eventb	0.68 (0.56–0.79)	0.90 (0.72–0.97)

Notes:

a Nurse practitioner review

b pharmacist review.

Abbreviation: CI, confidence interval.

Table S1 Summary of ICD-10-CA codes for adverse events

Adverse drug events

G04.0, G21.0, G62.0, L25.1, L27.0, L27.1, O35.501, O35.503, O35.509, P04.4, T36.0–T37.5, T37.8–T39.4, T39.8–T40.0, T40.2–T40.6, T41.0–T41.5, T42.0–T42.8, T43.0–T43.6, T43.8–43.9, T44.0–T48.7, T49.0–T50.9, T78.8, T88.1–T88.3, T88.5, T88.7, T80.3–T80.6, T80.8–T80.9, T96.0, X40–X43, X60, X62–X64, X85, Y10–Y14, Y40.1–Y41.5, Y41.8–Y43.6, Y43.8–Y44.7, Y44.9, Y45.0–Y45.5, Y45.8–Y46.8, Y47.0–Y47.5, Y47.8–Y48.5, Y49.0–Y49.5, Y49.7–Y50.1, Y50.8–Y55.7, Y56.0–Y58.6, Y58.8–Y59.0, Y59.2, Y59.3, Y59.8, Y59.9, Y63.0, Y64.0, and Y65.0.^Citation1

Pressure ulcers

L89.0–L89.8.^Citation2

Falls

W01–W08, W10, and W17–W19 – cases selected on the basis of diagnosis type (post-admit; Type 2) and place of occurrence codes (school/other institutional and public area; U98.2).^Citation3,Citation4

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