Final answer:
For an emergency transtracheal tracheostomy performed on an 18-month-old due to a swallowed toy, the correct codes are CPT: 31603 and ICD-10-CM: T17.9, which corresponds to emergency tracheostomy and unspecified obstruction of the respiratory tract, respectively.
Step-by-step explanation:
The correct CPT and ICD-10-CM codes for an 18-month-old patient having an emergency transtracheal tracheostomy due to airway obstruction by a swallowed toy are CPT: 31603, which is the code for transtracheal emergency tracheostomy, and ICD-10-CM: T17.9, which denotes a foreign body causing obstruction of the respiratory tract, unspecified part. Option B is the correct answer. It is important to accurately code such emergency procedures to ensure proper documentation and billing for the lifesaving care provided. The Heimlich maneuver may be an initial response to an airway obstruction, but in severe cases where the object has become lodged in the trachea, a more invasive procedure such as emergency tracheostomy is required. Unlike endotracheal intubation, a tracheostomy involves creating an opening directly in the trachea to bypass the obstruction.