Validation of International Classification of Diseases (ICD) code‐based case definitions of immune checkpoint inhibitor associated inflammatory arthritis from administrative health data

Manar Elsayed; Zoe Hsu; Finlay A. McAlister; William D. Leslie; L. Lix; Sasha Bernatsky; Suzanne N. Morin; Michelle M Graham; Aurore Fifi‐Mah; Shahin Jamal; Janet Roberts; Carrie Ye

doi:10.1002/art.70149

March 23, 2026Arthritis & RheumatologyOpen Access

Validation of International Classification of Diseases (ICD) code‐based case definitions of immune checkpoint inhibitor associated inflammatory arthritis from administrative health data

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Key Points

This research aims to validate ICD code-based case definitions for identifying inflammatory arthritis linked to immune checkpoint inhibitors.
Validation of ICD code-based case definitions
Analysis of administrative health data
Assessment of accuracy in detecting inflammatory arthritis
ICD code definitions accurately identified immune checkpoint inhibitor associated inflammatory arthritis
Supports the use of administrative health records for monitoring inflammatory arthritis cases

Implication

Validation study shows accurate detection of inflammatory arthritis in administrative health data, indicating broader surveillance possibilities.

Abstract

ICD code-based case definitions of ICI-IA can accurately detect ICI-IA and can be used to support ICI-IA surveillance and research with administrative health data.

Discussion

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Cite This Study

Elsayed et al. (2026) studied this question.

synapsesocial.com/papers/69c37ba2b34aaaeb1a67e4a0 https://doi.org/10.1002/art.70149

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Validation of International Classification of Diseases (ICD) code‐based case definitions of immune checkpoint inhibitor associated inflammatory arthritis from administrative health data

Key Points

Implication

Abstract

Discussion

Cite This Study

Validation of International Classification of Diseases (ICD) code‐based case definitions of immune checkpoint inhibitor associated inflammatory arthritis from administrative health data

Key Points

Implication

Abstract

Discussion

Cite This Study

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