2025 HCPCS code A1
(Active) Effective Date: N/A Revision Date: N/A Wound dressings - Modifiers Feed
Surgical dressing for a single wound.
Modifier A1 is used specifically to denote the application of a dressing to a single wound and is generally not used with other modifiers. However, other modifiers may be necessary depending on the overall circumstances of the service provided.
Medical necessity for surgical dressings is determined by the clinical condition of the wound.Documentation should justify the need for a dressing based on factors like size, depth, location, and presence of infection.
Providers or surgical suppliers applying surgical dressings.
In simple words: A code used with medical supplies to show a dressing was used on one wound.
Modifier A1 is used with the appropriate HCPCS code to indicate that a surgical dressing has been applied to a single wound.This modifier specifies the number of wounds dressed, not the total number of wounds treated.
Example 1: A physician debriding a single wound and applying a surgical dressing would use modifier A1 with the appropriate HCPCS code for the dressing., A patient presents with two separate lacerations requiring dressings. If the same dressing type is applied to both wounds, the provider would use modifier A2. However, if different dressings are used, the provider would report the HCPCS codes for each dressing separately, each with modifier A1., A surgical supplier provides dressings for a single post-surgical wound. The supplier would use modifier A1 with the appropriate HCPCS code when billing for the dressing.
Documentation should clearly specify the number of wounds dressed and the type of dressing applied to each wound. The medical record should support the medical necessity of the dressing.
- Payment Status: Active
- Specialties:Many specialties may utilize this modifier, including surgery, wound care, dermatology, and any specialty performing procedures that require wound dressings.
- Place of Service:Applicable in various settings, including physician offices, hospitals (inpatient and outpatient), ambulatory surgical centers, and other facilities where wound care is provided. "Office", "Inpatient Hospital", "On Campus-Outpatient Hospital", "Ambulatory Surgical Center", "Military Treatment Facility", "Skilled Nursing Facility", "Nursing Facility", "Home", "Other Place of Service".