S27 — Injury of other and unspecified intrathoracic organs
Is S27 billable?
No — S27 is a non-billable header code. S27 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 60 billable codes beneath S27.
Billable codes under this header
- S27.0XXATraumatic pneumothorax, initial encounter
- S27.0XXDTraumatic pneumothorax, subsequent encounter
- S27.0XXSTraumatic pneumothorax, sequela
- S27.1XXATraumatic hemothorax, initial encounter
- S27.1XXDTraumatic hemothorax, subsequent encounter
- S27.1XXSTraumatic hemothorax, sequela
- S27.2XXATraumatic hemopneumothorax, initial encounter
- S27.2XXDTraumatic hemopneumothorax, subsequent encounter
- S27.2XXSTraumatic hemopneumothorax, sequela
- S27.9XXAInjury of unspecified intrathoracic organ, initial encounter
- S27.9XXDInjury of unspecified intrathoracic organ, subsequent encounter
- S27.9XXSInjury of unspecified intrathoracic organ, sequela
- S27.50XAUnspecified injury of thoracic trachea, initial encounter
- S27.50XDUnspecified injury of thoracic trachea, subsequent encounter
- S27.50XSUnspecified injury of thoracic trachea, sequela
- S27.51XAPrimary blast injury of thoracic trachea, initial encounter
- S27.51XDPrimary blast injury of thoracic trachea, subsequent encounter
- S27.51XSPrimary blast injury of thoracic trachea, sequela
- S27.52XAContusion of thoracic trachea, initial encounter
- S27.52XDContusion of thoracic trachea, subsequent encounter
- S27.52XSContusion of thoracic trachea, sequela
- S27.53XALaceration of thoracic trachea, initial encounter
- S27.53XDLaceration of thoracic trachea, subsequent encounter
- S27.53XSLaceration of thoracic trachea, sequela
- S27.59XAOther injury of thoracic trachea, initial encounter
- S27.59XDOther injury of thoracic trachea, subsequent encounter
- S27.59XSOther injury of thoracic trachea, sequela
- S27.60XAUnspecified injury of pleura, initial encounter
- S27.60XDUnspecified injury of pleura, subsequent encounter
- S27.60XSUnspecified injury of pleura, sequela
- S27.63XALaceration of pleura, initial encounter
- S27.63XDLaceration of pleura, subsequent encounter
- S27.63XSLaceration of pleura, sequela
- S27.69XAOther injury of pleura, initial encounter
- S27.69XDOther injury of pleura, subsequent encounter
- S27.69XSOther injury of pleura, sequela
- S27.301AUnspecified injury of lung, unilateral, initial encounter
- S27.301DUnspecified injury of lung, unilateral, subsequent encounter
- S27.301SUnspecified injury of lung, unilateral, sequela
- S27.302AUnspecified injury of lung, bilateral, initial encounter
- S27.302DUnspecified injury of lung, bilateral, subsequent encounter
- S27.302SUnspecified injury of lung, bilateral, sequela
- S27.309AUnspecified injury of lung, unspecified, initial encounter
- S27.309DUnspecified injury of lung, unspecified, subsequent encounter
- S27.309SUnspecified injury of lung, unspecified, sequela
- S27.311APrimary blast injury of lung, unilateral, initial encounter
- S27.311DPrimary blast injury of lung, unilateral, subsequent encounter
- S27.311SPrimary blast injury of lung, unilateral, sequela
- S27.312APrimary blast injury of lung, bilateral, initial encounter
- S27.312DPrimary blast injury of lung, bilateral, subsequent encounter
- S27.312SPrimary blast injury of lung, bilateral, sequela
- S27.319APrimary blast injury of lung, unspecified, initial encounter
- S27.319DPrimary blast injury of lung, unspecified, subsequent encounter
- S27.319SPrimary blast injury of lung, unspecified, sequela
- S27.321AContusion of lung, unilateral, initial encounter
- S27.321DContusion of lung, unilateral, subsequent encounter
- S27.321SContusion of lung, unilateral, sequela
- S27.322AContusion of lung, bilateral, initial encounter
- S27.322DContusion of lung, bilateral, subsequent encounter
- S27.322SContusion of lung, bilateral, sequela
S27 at a glance
| Code | S27 |
|---|---|
| Description | Injury of other and unspecified intrathoracic organs |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes2 — not included here
The conditions below are not part of S27, but a patient may have both at the same time. When documentation supports it, S27 and the excluded code may both be reported.
Code also
Two codes may be needed to describe the condition fully. Whether S27 is sequenced first depends on the reason for the encounter.
- any associated open wound of thorax (S21.-)
Use additional code — inherited from Chapter 19
Report an additional code alongside S27 to fully describe the condition. S27 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S27, but a patient may have both at the same time. When documentation supports it, S27 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S20-S29
The conditions below are not part of S27, but a patient may have both at the same time. When documentation supports it, S27 and the excluded code may both be reported.
- 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)
What codes fall under S27? (9)
- S27.0Traumatic pneumothoraxnot billable
- S27.1Traumatic hemothoraxnot billable
- S27.2Traumatic hemopneumothoraxnot billable
- S27.3Other and unspecified injuries of lungnot billable
- S27.4Injury of bronchusnot billable
- S27.5Injury of thoracic tracheanot billable
- S27.6Injury of pleuranot billable
- S27.8Injury of other specified intrathoracic organsnot billable
- S27.9Injury of unspecified intrathoracic organnot billable
How long has S27 existed?
S27 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with S27?
ICD-10-CM declares these codes mutually exclusive with S27 — exactly one of each pair can be correct for a given encounter.