Is ICD-10-CM code S27 billable?

No, S27 (Injury of other and unspecified intrathoracic organs) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code S27 belong to?

S27 belongs to Chapter 19 of the ICD-10-CM tabular list: S00–T88 (Injury, Poisoning and Certain Other Consequences of External Causes).

S27Non-billable

Injury of other and unspecified intrathoracic organs

Injury, Poisoning and Certain Other Consequences of External Causes·Injuries to the thorax (S20-S29)·category·FY 2026

Use a more specific code (4 billable, 5 non-billable)

S27.0Traumatic pneumothorax S27.1Traumatic hemothorax S27.2Traumatic hemopneumothorax S27.3Other and unspecified injuries of lunghas subcodes S27.4Injury of bronchushas subcodes S27.5Injury of thoracic tracheahas subcodes S27.6Injury of pleurahas subcodes S27.8Injury of other specified intrathoracic organshas subcodes S27.9Injury of unspecified intrathoracic organ

CH19 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

birth trauma (P10-P15)
obstetric trauma (O70-O71)

Use Additional Code

code to identify any retained foreign body, if applicable (Z18.-)

S20-S29 Parent Instructions

Includes

injuries of breast
injuries of chest (wall)
injuries of interscapular area

Excludes2(Not included here. Code separately if applicable.)

burns and corrosions (T20-T32)
effects of foreign body in bronchus (T17.5)
effects of foreign body in esophagus (T18.1)
effects of foreign body in lung (T17.8)
effects of foreign body in trachea (T17.4)
frostbite (T33-T34)
injuries of axilla
injuries of clavicle
injuries of scapular region
injuries of shoulder
insect bite or sting, venomous (T63.4)

Instructional Notes

Excludes2(Not included here. Code separately if applicable.)

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

Code Also

any associated open wound of thorax (S21.-)

Clinical Hierarchy

BillableHas subcodes

CH19Injury, poisoning and certain other consequences of external causes (S00-T88)

S20-S29Injuries to the thorax (S20-S29)

S27Injury of other and unspecified intrathoracic organsNot billable

S27.0Traumatic pneumothoraxBillable

S27.1Traumatic hemothoraxBillable

S27.2Traumatic hemopneumothoraxBillable

S27.3Other and unspecified injuries of lungSubcodes

S27.4Injury of bronchusSubcodes

S27.5Injury of thoracic tracheaSubcodes

S27.6Injury of pleuraSubcodes

S27.8Injury of other specified intrathoracic organsSubcodes

S27.9Injury of unspecified intrathoracic organBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.