Does T54.3X4A require prior authorization?

No, T54.3X4A does not require prior authorization (high confidence). Covered without prior authorization.

`T54.3X4A`, Toxic effect of corrosive alkalis and alkali-like substances, undetermined, initial encounter

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

This billing and coding guidance complements Local Coverage Determination L34434; follow LCD L34434 for clinical coverage criteria and required documentation for claims.
All services billed with unlisted procedure codes must include sufficient medical records and supporting documentation to allow development and medical review.
This article provides billing/coding guidelines that complement Local Coverage Determination L34417 for CT of the head; consult LCD L34417 for specific coverage, coding, and documentation requirements.

Esophagogastroduodenoscopy (EGD) is covered when it meets the reasonable and necessary requirements specified in Local Coverage Determination L33583.
Upper gastrointestinal endoscopy (diagnostic or therapeutic) is covered when determined reasonable and necessary per Local Coverage Determination L35350.
Therapeutic EGD is covered for removal of foreign bodies from the esophagus or stomach.
EGD is covered for persistent upper abdominal distress (e.g., gastroesophageal reflux disease) that continues despite an appropriate trial of symptomatic therapy.
EGD is covered for upper abdominal distress accompanied by a short history of concerning signs or symptoms such as weight loss, anorexia, vomiting, or NSAID/other gastric irritant intake.
EGD is covered for patients older than 40 years who have a significant history of heartburn that recurs after a course of symptomatic therapy.

A57063, Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy

FIRST_COAST-L33583, Diagnostic and Therapeutic Esophagogastroduodenoscopy

NOVITAS-JH-L35434, Oximetry Services

NOVITAS-JH-L35350, Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)

NOVITAS-JL-L35350, Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)

NOVITAS-JL-L35434, Oximetry Services

A57205, Billing and Coding: Oximetry Services

A57414, Billing and Coding: Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)

A56612, Billing and Coding: CT of the Head

A56389, Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization