Billing Code Overview

HCPCS Level II code A6197 describes an alginate or other fiber gelling dressing, wound cover, sterile, sized more than 16 sq. in. but less than or equal to 48 sq. in., each dressing. This supply is classified as a wound care supply (HCPCS Level II – durable medical equipment/supplies) and is intended to manage exudative wounds by forming a gel on contact with wound fluid.

The typical site of service for A6197 is ambulatory/outpatient wound care settings. The Type of Service designation for this code is "S": Surgical Dressings or Other Medical Supplies.

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Clinical Context

A typical patient is an adult with a lower-extremity or other soft-tissue wound managed in an ambulatory or outpatient wound care clinic. The clinician evaluates the wound (history, wound measurement, and assessment for infection or necrotic tissue), performs any indicated debridement or cleansing, and selects dressings appropriate to wound characteristics. HCPCS Level II code A6197 (alginate or other fiber gelling dressing, sterile, pad size >16 sq. in. to ≤48 sq. in., each dressing) is applied when a single sterile alginate/fiber gelling dressing of the specified size is provided and documented in the supply record. Typical workflow: triage and wound assessment by a wound care nurse or physician, wound cleansing and, if indicated, debridement (separate procedure codes may apply), application of the alginate/fiber-gelling dressing sized >16–≤48 sq. in., patient/caregiver dressing education, and documentation of dressing type, size, and quantity supplied.

Coding Specifications

• Modifier 59: Use to indicate a distinct procedural service when the supply or dressing is separately identifiable from other procedures performed on the same date of service.

• Modifier LT: Use to indicate the dressing was applied to the left side of the body when laterality is relevant and required by the payer.

• Modifier RT: Use to indicate the dressing was applied to the right side of the body when laterality is relevant and required by the payer.

Associated provider taxonomies:

Related Diagnoses

• L97.909 — Non-pressure chronic ulcer of unspecified part of unspecified lower leg

  Relevance: Chronic lower-leg ulcers commonly require alginate or fiber-gelling dressings for exudate management and wound bed maintenance; A6197 may be supplied based on wound size.

• L89.309 — Pressure ulcer of unspecified buttock, stage 1

  Relevance: Early-stage pressure ulcers may receive wound dressings for protection and moisture management; dressing size and type determine use of A6197 when appropriate.

• S81.009A — Unspecified open wound, unspecified knee, initial encounter

  Relevance: Open knee wounds from trauma may require sterile alginate/fiber dressings; A6197 applies when pad size falls within the specified range.

• T81.31XA — Disruption of external operation (surgical) wound, not elsewhere classified, initial encounter

  Relevance: Postoperative wound disruptions often need sterile dressings for drainage control; A6197 may be used if the dressing size matches the wound.

• L89.899 — Pressure ulcer of other site, unspecified stage

  Relevance: Pressure ulcers at other locations may require absorbent alginate/fiber-gelling dressings; A6197 is relevant based on wound dimensions and exudate level.

Related Codes

Clinical relationships and workflow:

• 97597: May be performed prior to application of A6197 when sharp selective debridement of devitalized tissue is required. 97597 is an operative/therapeutic service; A6197 documents the specific dressing supplied after debridement.

• 97602: Represents non-selective debridement (e.g., enzymatic or mechanical) and can occur in the same visit before application of A6197.

• A6209: An alternative dressing type for smaller wounds (pad size ≤16 sq. in.). Clinically selected instead of A6197 when wound size is smaller.

• A6212: An alternative composite dressing for wounds that require a different material or construction; used instead of A6197 when clinically appropriate.

Common usage notes: A6197 is commonly billed with debridement codes when debridement is performed during the same encounter. When multiple supplies or distinct services occur on the same date, use of modifier 59 may be appropriate to indicate distinct procedural services.

National mean rates for HCPCS Level II code A6197 cluster around the mid-teens. Medicare average aligns with the BUCA (average commercial) mean at $15.26, while commercial payers vary: Blue Cross Blue Shield posts the highest mean at $16.90 and Aetna, Cigna Health, and UnitedHealthcare are slightly lower, all near $14–$15.

Rate dispersion (P75 minus P25) is widest for Blue Cross Blue Shield (9.5 points) and BUCA (6.17 points), indicating broader variability in commercial contracting. Cigna Health is the tightest with no dispersion (0 points), followed by UnitedHealthcare (5 points) and Aetna (5 points). The table and chart below present the full breakdown.