S27.809A Unspecified injury of diaphragm, initial encounter

Billable ICD-10-CM code, FY2026.

Built from S27.809 with 7th character A (initial encounter).

Applies from S27 Injury of other and unspecified intrathoracic organs

Excludes2 (not included here)

• injury of cervical esophagus (S10-S19)
• injury of trachea (cervical) (S10-S19)

Code also

• any associated open wound of thorax (S21.-)

7th character note

• The appropriate 7th character is to be added to each code from category S27

7th character required

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

Code annotations containing back-references to S27.809A

Back-references to S27.8

• Type 1 Excludes: K22.3 Perforation of esophagus ("traumatic perforation of (thoracic) esophagus (S27.8-)")
• Type 1 Excludes: S11.2 Open wound of pharynx and cervical esophagus ("open wound of esophagus NOS (S27.8-)")

Back-references to S27

• Code Also: S21 Open wound of thorax ("injury of intrathoracic organs (S27.-)")
• Code Also: S22 Fracture of rib(s), sternum and thoracic spine ("injury of intrathoracic organ (S27.-)")

Diagnosis Index entries for S27.809A

• Injury › intrathoracic › diaphragm

Nearby codes

• S27.808 Other injury of diaphragm
• S27.808A Other injury of diaphragm, initial encounter
• S27.808D Other injury of diaphragm, subsequent encounter
• S27.808S Other injury of diaphragm, sequela
• S27.809 Unspecified injury of diaphragm
• S27.809A Unspecified injury of diaphragm, initial encounter (this code)
• S27.809D Unspecified injury of diaphragm, subsequent encounter
• S27.809S Unspecified injury of diaphragm, sequela
• S27.81 Injury of esophagus (thoracic part)
• S27.812 Contusion of esophagus (thoracic part)
• S27.812A Contusion of esophagus (thoracic part), initial encounter