T17.420D Food in trachea causing asphyxiation, subsequent encounter

Billable ICD-10-CM code, FY2026.

Built from T17.420 with 7th character D (subsequent encounter).

Applies from T17 Foreign body in respiratory tract

7th character note

• The appropriate 7th character is to be added to each code from category T17

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Applies from T17.42 Food in trachea

Applicable to

• Bones in trachea
• Seeds in trachea

Code annotations containing back-references to T17.420D

Back-references to T17

• Code Also: J69.0 Pneumonitis due to inhalation of food and vomit ("any associated foreign body in respiratory tract (T17.-)")
• Type 1 Excludes: R09.0 Asphyxia and hypoxemia ("asphyxia due to foreign body in respiratory tract (T17.-)")
• Type 2 Excludes: T18.1 Foreign body in esophagus ("foreign body in respiratory tract (T17.-)")
• Type 1 Excludes: T71 Asphyxiation ("asphyxia from inhalation of food or foreign body (T17.-)")
• Type 2 Excludes: Z03.82 Encounter for observation for suspected foreign body ruled out ("foreign body in respiratory tract (T17)")
• Type 1 Excludes: Z18 Retained foreign body fragments ("foreign body entering through orifice (T15-T19)")

Diagnosis Index entries for T17.420D

• Foreign body › trachea › causing › asphyxiation › food (bone) (seed)

Nearby codes

• T17.418D Gastric contents in trachea causing other injury, subsequent encounter
• T17.418S Gastric contents in trachea causing other injury, sequela
• T17.42 Food in trachea
• T17.420 Food in trachea causing asphyxiation
• T17.420A Food in trachea causing asphyxiation, initial encounter
• T17.420D Food in trachea causing asphyxiation, subsequent encounter (this code)
• T17.420S Food in trachea causing asphyxiation, sequela
• T17.428 Food in trachea causing other injury
• T17.428A Food in trachea causing other injury, initial encounter
• T17.428D Food in trachea causing other injury, subsequent encounter
• T17.428S Food in trachea causing other injury, sequela