# Outpatient Cutaneous Wound Care in the United States: Specialty Distribution and Antimicrobial Prescribing Patterns

## TL;DR

This study examines how cutaneous wounds are managed in U.S. outpatient care, focusing on which specialists are involved and how antimicrobials are prescribed.

## Contribution

The study provides national insights into specialty distribution and antimicrobial prescribing patterns for acute and chronic cutaneous wounds.

## Key findings

- Primary care physicians handle most wound visits, while dermatologists manage a smaller share, especially for chronic wounds.
- Antimicrobials are commonly prescribed, with cephalexin being the most frequently used in acute wound visits.
- Chronic wound visits show a more varied antimicrobial profile, including topical treatments like mupirocin and nystatin.

## Abstract

Background: Cutaneous wounds are common in outpatient care, but national patterns of who manages them and how antimicrobials are used remain unclear. Objectives: To characterize outpatient specialty involvement and antimicrobial use for acute and chronic cutaneous wound visits in the United States. Methods: We conducted a retrospective cross-sectional analysis of 2011–2019 National Ambulatory Medical Care Survey (NAMCS) data. Cutaneous wound visits were identified using prespecified ICD-9-CM and ICD-10-CM codes and classified as acute (open or traumatic wounds and burns) or chronic (pressure injuries and lower-limb ulcers). Survey weights were applied to estimate national visit volumes, specialty shares, and antimicrobial utilization patterns. Results: We identified 45.1 million cutaneous wound visits, representing 0.8% of all outpatient visits, of which about two thirds were acute and one third chronic. Primary care physicians accounted for the largest share of wound visits, while dermatologists managed 3.9% of overall wound visits, 2.4% of acute visits, and 7.4% of chronic visits. Among 156.6 million medications recorded at wound visits, antimicrobials represented 13.1% overall, 14.9% in acute visits, and 10.2% in chronic visits. Cephalexin accounted for 32.1% of antimicrobial medications overall and 39.2% in acute visits, whereas chronic wound visits had a more heterogeneous antimicrobial profile that included topical mupirocin, cephalexin, trimethoprim–sulfamethoxazole, and topical nystatin. Conclusions: Outpatient cutaneous wound care in the United States is delivered predominantly by primary care clinicians and relies heavily on a small set of systemic and topical antimicrobials, highlighting opportunities to strengthen antimicrobial stewardship and expand dermatology’s role in chronic wound management.