Validation of the Dermatologic Complexity Score for Dermatologic Triage.

Area of Science:

• Dermatology
• Health Services Research
• Medical Informatics

Background:

• High demand for dermatologic services leads to long wait times in the US.
• Current triage methods are subjective and lack generalizability across diagnoses.
• A standardized instrument is needed for efficient case prioritization in dermatology.

Purpose of the Study:

• To develop and validate the Dermatologic Complexity Score (DCS) for case prioritization.
• To evaluate the DCS as a tool for workload reduction in teledermatology.
• To assess the safe delegation of low-complexity cases (DCS ≤ 40) to primary care.

Main Methods:

• Prospective validation study of the DCS using 100 teledermatology cases across 30 conditions.
• DCS assesses complexity across five domains (Diagnostic, Treatment, Risk, Patient, Monitoring) on a 0-100 scale.
• Interrater reliability (dermatologists) and agreement with an automated module were assessed; primary care physicians managed low-complexity cases.

Main Results:

• The DCS demonstrated excellent interrater reliability (ICC = 0.979) and near-perfect agreement with automation (r = 0.998).
• 47% of cases scored ≤40 (low complexity), with 0% referral rate; higher complexity scores correlated with increased decision time and referral rates.
• Primary care physicians successfully managed all low-complexity cases, with a manageable increase in case management time.

Conclusions:

• The DCS is a reliable and valid instrument for standardizing dermatology triage and optimizing resource allocation.
• The DCS facilitates the safe delegation of low-complexity cases, potentially improving access to dermatologic care.
• Implementation of the DCS can enhance efficiency in teledermatology, clinic, procedural, and inpatient settings.