CPT Code 43450: Esophageal Dilation Without Fluoroscopy or Endoscopy

Read this guide to learn documentation and billing for CPT code 43450, for non-endoscopic esophageal dilation using unguided sound or bougie.

Use Code

What is CPT code 43450?

CPT code 43450 refers to dilation of the esophagus using unguided sound or bougie instruments without fluoroscopic or endoscopic guidance. This procedure involves passing instruments of gradually increasing diameter (bougies or sounds) through the patient's esophagus to dilate or widen esophageal strictures, thereby improving swallowing and reducing symptoms like dysphagia. Performed by a qualified physician, typically a gastroenterologist or surgeon, this procedure addresses benign conditions such as peptic strictures, Schatzki rings, esophageal webs, or narrowing following surgery. CPT 43450 specifically covers multiple passes performed in the same session using manual tactile guidance rather than imaging methods.

What is esophageal dilation?

Esophageal dilation is a therapeutic procedure designed to widen narrowed areas of the esophagus, known as esophageal strictures. This procedure is commonly indicated for conditions causing difficulty swallowing, including peptic strictures, Schatzki rings, esophageal webs, and post-surgical narrowing. Methods used include balloon dilation (inflatable devices) under fluoroscopic or endoscopic guidance, and unguided methods employing weighted bougies or tapered instruments (sounds).

However, CPT code 43450 is specifically for dilation of the esophagus performed without fluoroscopic or endoscopic imaging.

CPT code 43450 documentation requirements

Accurate and thorough documentation of services performed under CPT 43450 is essential and should include:

Indication and type of esophageal strictures

Document the clinical indication clearly, including diagnosis such as peptic stricture, esophageal web, or Schatzki ring.

Size and type of dilators used

Note the specific type and sizes of the dilators (bougies or unguided sounds) employed during dilation of the esophagus.

Pre- and post-procedure assessment

Include detailed evaluation of the patient before and after the procedure, highlighting clinical improvement or any persistent issues.

Patient tolerance and complications

Record the patient's tolerance to the procedure, noting any complications or adverse reactions occurring the same day.

CPT code 43450 billing guidelines

Billing for CPT code 43450 involves following specific guidelines to ensure accurate coding and reimbursement:

Do not bill with fluoroscopic or endoscopic guidance

CPT 43450 exclusively applies to esophageal dilation without imaging guidance. If fluoroscopic guidance is used, report CPT 43453; if endoscopic guidance is utilized, other endoscopy-related CPT codes are applicable.

Sedation and anesthesia considerations

If sedation or anesthesia is provided by the physician during the dilation, it may be billed separately with appropriate anesthesia codes, depending on the circumstances and payer guidelines.

Bundling with endoscopic procedures

Esophageal dilation is typically bundled into endoscopic esophageal procedures unless documented clearly as a distinct and separately identifiable service.

Applicable modifiers for CPT code 43450

For many routine cases, no modifier is required for CPT 43450 unless there are special circumstances such as multiple procedures, repeat procedures, or the need for an assistant surgeon. The following modifiers can be used if these special circumstances arise:

Modifier 22 – Increased procedural services: Indicates the physician performed substantially greater work than typically required for the procedure.
Modifier 51 – Multiple procedures: Used when multiple procedures, including manipulation procedures, are performed by the physician on the same day.
Modifier 59 – Distinct procedural service: Shows that the dilation of the esophagus was a distinct or independent procedure from other services performed the same day.
Modifier 76 – Repeat procedure by same physician: Indicates the same physician repeated the dilation procedure on the same day.
Modifier 77 – Repeat procedure by another physician: Used if another physician repeats the same dilation procedure on the patient during the same day.
Modifier 78 – Unplanned return to procedure room: Used when an unplanned return for related surgery or dilation occurs during the postoperative period.
Modifier 79 – Unrelated procedure during postoperative period: Shows the procedure performed was unrelated to previous surgery within the postoperative period.
Modifier 80 – Assistant surgeon: Indicates an assistant surgeon was necessary during the dilation procedure.
Modifier 81 – Minimum assistant surgeon: Use when a minimum assistant surgeon was required.
Modifier 82 – Assistant surgeon (when qualified resident surgeon not available): Use when an assistant surgeon is necessary due to the unavailability of a qualified resident surgeon.
Modifier AS – Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery: Use when these healthcare professionals assist in surgery.

Related CPT codes

Related CPT codes used for esophageal dilation procedures include:

43453: Esophageal dilation using balloon or bougie with fluoroscopic guidance.
43249: Endoscopic dilation of esophagus using balloon (EGD).
43195: Rigid Esophagoscopy with balloon dilation (<30 mm diameter).
43196: Rigid Esophagoscopy with dilation over guide wire.
43460: Esophagogastric tamponade, with balloon (e.g., Sengstaken type).

Frequently asked questions

No. CPT code 43450 specifically covers esophageal dilation performed manually without fluoroscopic or endoscopic visualization.

CPT code 43450 has a global period of 0 days.

Generally, no. Billing both 43450 and endoscopic dilation (43249) during the same session is inappropriate, as these procedures overlap unless clearly documented as distinct and separate services.