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ICD-10/S27

S27 ICD-10-CM Code: Injury of other and unspecified intrathoracic organs

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Injury of other and unspecified intrathoracic organs is a non-billable ICD-10-CM category code (S27). A more specific billable subcode must be selected for claims submission.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for S27 in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

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

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

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

Code Also

Additional codes that may be required to fully describe the encounter.

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

Frequently Asked Questions (FAQ) & Clinical Guidance

Can S27 be billed directly?

No. S27 (Injury of other and unspecified intrathoracic organs) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Does S27 require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category S27; A: initial encounter; D: subsequent encounter; S: sequela.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to S27 in its code family, with their registry titles.

  • S27.0 — Traumatic pneumothorax
  • S27.0XXA — Traumatic pneumothorax, initial encounter
  • S27.0XXD — Traumatic pneumothorax, subsequent encounter
  • S27.0XXS — Traumatic pneumothorax, sequela
  • S27.1 — Traumatic hemothorax
  • S27.1XXA — Traumatic hemothorax, initial encounter
  • S27.1XXD — Traumatic hemothorax, subsequent encounter
  • S27.1XXS — Traumatic hemothorax, sequela
  • S27.2 — Traumatic hemopneumothorax
  • S27.2XXA — Traumatic hemopneumothorax, initial encounter
  • S27.2XXD — Traumatic hemopneumothorax, subsequent encounter
  • S27.2XXS — Traumatic hemopneumothorax, sequela
  • S27.3 — Other and unspecified injuries of lung
  • S27.30 — Unspecified injury of lung
  • S27.301 — Unspecified injury of lung, unilateral
  • S27.301A — Unspecified injury of lung, unilateral, initial encounter
  • S27.301D — Unspecified injury of lung, unilateral, subsequent encounter
  • S27.301S — Unspecified injury of lung, unilateral, sequela
  • S27.302 — Unspecified injury of lung, bilateral
  • S27.302A — Unspecified injury of lung, bilateral, initial encounter
  • S27.302D — Unspecified injury of lung, bilateral, subsequent encounter
  • S27.302S — Unspecified injury of lung, bilateral, sequela
  • S27.309 — Unspecified injury of lung, unspecified
  • S27.309A — Unspecified injury of lung, unspecified, initial encounter
  • S27.309D — Unspecified injury of lung, unspecified, subsequent encounter
  • S27.309S — Unspecified injury of lung, unspecified, sequela
  • S27.31 — Primary blast injury of lung
  • S27.311 — Primary blast injury of lung, unilateral
  • S27.311A — Primary blast injury of lung, unilateral, initial encounter
  • S27.311D — Primary blast injury of lung, unilateral, subsequent encounter
  • S27.311S — Primary blast injury of lung, unilateral, sequela
  • S27.312 — Primary blast injury of lung, bilateral
  • S27.312A — Primary blast injury of lung, bilateral, initial encounter
  • S27.312D — Primary blast injury of lung, bilateral, subsequent encounter
  • S27.312S — Primary blast injury of lung, bilateral, sequela
  • S27.319 — Primary blast injury of lung, unspecified
  • S27.319A — Primary blast injury of lung, unspecified, initial encounter
  • S27.319D — Primary blast injury of lung, unspecified, subsequent encounter
  • S27.319S — Primary blast injury of lung, unspecified, sequela
  • S27.32 — Contusion of lung
  • S27.321 — Contusion of lung, unilateral
  • S27.321A — Contusion of lung, unilateral, initial encounter
  • S27.321D — Contusion of lung, unilateral, subsequent encounter
  • S27.321S — Contusion of lung, unilateral, sequela
  • S27.322 — Contusion of lung, bilateral
  • S27.322A — Contusion of lung, bilateral, initial encounter
  • S27.322D — Contusion of lung, bilateral, subsequent encounter
  • S27.322S — Contusion of lung, bilateral, sequela
  • S27.329 — Contusion of lung, unspecified
  • S27.329A — Contusion of lung, unspecified, initial encounter
  • S27.329D — Contusion of lung, unspecified, subsequent encounter
  • S27.329S — Contusion of lung, unspecified, sequela
  • S27.33 — Laceration of lung
  • S27.331 — Laceration of lung, unilateral
  • S27.331A — Laceration of lung, unilateral, initial encounter
  • S27.331D — Laceration of lung, unilateral, subsequent encounter
  • S27.331S — Laceration of lung, unilateral, sequela
  • S27.332 — Laceration of lung, bilateral
  • S27.332A — Laceration of lung, bilateral, initial encounter
  • S27.332D — Laceration of lung, bilateral, subsequent encounter
  • S27.332S — Laceration of lung, bilateral, sequela
  • S27.339 — Laceration of lung, unspecified
  • S27.339A — Laceration of lung, unspecified, initial encounter
  • S27.339D — Laceration of lung, unspecified, subsequent encounter
  • S27.339S — Laceration of lung, unspecified, sequela
  • S27.39 — Other injuries of lung
  • S27.391 — Other injuries of lung, unilateral
  • S27.391A — Other injuries of lung, unilateral, initial encounter
  • S27.391D — Other injuries of lung, unilateral, subsequent encounter
  • S27.391S — Other injuries of lung, unilateral, sequela
  • S27.392 — Other injuries of lung, bilateral
  • S27.392A — Other injuries of lung, bilateral, initial encounter
  • S27.392D — Other injuries of lung, bilateral, subsequent encounter
  • S27.392S — Other injuries of lung, bilateral, sequela
  • S27.399 — Other injuries of lung, unspecified
  • S27.399A — Other injuries of lung, unspecified, initial encounter
  • S27.399D — Other injuries of lung, unspecified, subsequent encounter
  • S27.399S — Other injuries of lung, unspecified, sequela
  • S27.4 — Injury of bronchus
  • S27.40 — Unspecified injury of bronchus
  • S27.401 — Unspecified injury of bronchus, unilateral
  • S27.401A — Unspecified injury of bronchus, unilateral, initial encounter
  • S27.401D — Unspecified injury of bronchus, unilateral, subsequent encounter
  • S27.401S — Unspecified injury of bronchus, unilateral, sequela
  • S27.402 — Unspecified injury of bronchus, bilateral
  • S27.402A — Unspecified injury of bronchus, bilateral, initial encounter
  • S27.402D — Unspecified injury of bronchus, bilateral, subsequent encounter
  • S27.402S — Unspecified injury of bronchus, bilateral, sequela
  • S27.409 — Unspecified injury of bronchus, unspecified
  • S27.409A — Unspecified injury of bronchus, unspecified, initial encounter
  • S27.409D — Unspecified injury of bronchus, unspecified, subsequent encounter
  • S27.409S — Unspecified injury of bronchus, unspecified, sequela
  • S27.41 — Primary blast injury of bronchus
  • S27.411 — Primary blast injury of bronchus, unilateral
  • S27.411A — Primary blast injury of bronchus, unilateral, initial encounter
  • S27.411D — Primary blast injury of bronchus, unilateral, subsequent encounter
  • S27.411S — Primary blast injury of bronchus, unilateral, sequela
  • S27.412 — Primary blast injury of bronchus, bilateral
  • S27.412A — Primary blast injury of bronchus, bilateral, initial encounter
  • S27.412D — Primary blast injury of bronchus, bilateral, subsequent encounter
  • S27.412S — Primary blast injury of bronchus, bilateral, sequela
  • S27.419 — Primary blast injury of bronchus, unspecified
  • S27.419A — Primary blast injury of bronchus, unspecified, initial encounter
  • S27.419D — Primary blast injury of bronchus, unspecified, subsequent encounter
  • S27.419S — Primary blast injury of bronchus, unspecified, sequela
  • S27.42 — Contusion of bronchus
  • S27.421 — Contusion of bronchus, unilateral
  • S27.421A — Contusion of bronchus, unilateral, initial encounter
  • S27.421D — Contusion of bronchus, unilateral, subsequent encounter
  • S27.421S — Contusion of bronchus, unilateral, sequela
  • S27.422 — Contusion of bronchus, bilateral
  • S27.422A — Contusion of bronchus, bilateral, initial encounter
  • S27.422D — Contusion of bronchus, bilateral, subsequent encounter
  • S27.422S — Contusion of bronchus, bilateral, sequela
  • S27.429 — Contusion of bronchus, unspecified
  • S27.429A — Contusion of bronchus, unspecified, initial encounter
  • S27.429D — Contusion of bronchus, unspecified, subsequent encounter
  • S27.429S — Contusion of bronchus, unspecified, sequela
  • S27.43 — Laceration of bronchus
  • S27.431 — Laceration of bronchus, unilateral
  • S27.431A — Laceration of bronchus, unilateral, initial encounter
  • S27.431D — Laceration of bronchus, unilateral, subsequent encounter
  • S27.431S — Laceration of bronchus, unilateral, sequela
  • S27.432 — Laceration of bronchus, bilateral
  • S27.432A — Laceration of bronchus, bilateral, initial encounter
  • S27.432D — Laceration of bronchus, bilateral, subsequent encounter
  • S27.432S — Laceration of bronchus, bilateral, sequela
  • S27.439 — Laceration of bronchus, unspecified
  • S27.439A — Laceration of bronchus, unspecified, initial encounter
  • S27.439D — Laceration of bronchus, unspecified, subsequent encounter
  • S27.439S — Laceration of bronchus, unspecified, sequela
  • S27.49 — Other injury of bronchus
  • S27.491 — Other injury of bronchus, unilateral
  • S27.491A — Other injury of bronchus, unilateral, initial encounter
  • S27.491D — Other injury of bronchus, unilateral, subsequent encounter
  • S27.491S — Other injury of bronchus, unilateral, sequela
  • S27.492 — Other injury of bronchus, bilateral
  • S27.492A — Other injury of bronchus, bilateral, initial encounter
  • S27.492D — Other injury of bronchus, bilateral, subsequent encounter
  • S27.492S — Other injury of bronchus, bilateral, sequela
  • S27.499 — Other injury of bronchus, unspecified
  • S27.499A — Other injury of bronchus, unspecified, initial encounter
  • S27.499D — Other injury of bronchus, unspecified, subsequent encounter
  • S27.499S — Other injury of bronchus, unspecified, sequela
  • S27.5 — Injury of thoracic trachea
  • S27.50 — Unspecified injury of thoracic trachea
  • S27.50XA — Unspecified injury of thoracic trachea, initial encounter
  • S27.50XD — Unspecified injury of thoracic trachea, subsequent encounter
  • S27.50XS — Unspecified injury of thoracic trachea, sequela
  • S27.51 — Primary blast injury of thoracic trachea
  • S27.51XA — Primary blast injury of thoracic trachea, initial encounter
  • S27.51XD — Primary blast injury of thoracic trachea, subsequent encounter
  • S27.51XS — Primary blast injury of thoracic trachea, sequela
  • S27.52 — Contusion of thoracic trachea
  • S27.52XA — Contusion of thoracic trachea, initial encounter
  • S27.52XD — Contusion of thoracic trachea, subsequent encounter
  • S27.52XS — Contusion of thoracic trachea, sequela
  • S27.53 — Laceration of thoracic trachea
  • S27.53XA — Laceration of thoracic trachea, initial encounter
  • S27.53XD — Laceration of thoracic trachea, subsequent encounter
  • S27.53XS — Laceration of thoracic trachea, sequela
  • S27.59 — Other injury of thoracic trachea
  • S27.59XA — Other injury of thoracic trachea, initial encounter
  • S27.59XD — Other injury of thoracic trachea, subsequent encounter
  • S27.59XS — Other injury of thoracic trachea, sequela
  • S27.6 — Injury of pleura
  • S27.60 — Unspecified injury of pleura
  • S27.60XA — Unspecified injury of pleura, initial encounter
  • S27.60XD — Unspecified injury of pleura, subsequent encounter
  • S27.60XS — Unspecified injury of pleura, sequela
  • S27.63 — Laceration of pleura
  • S27.63XA — Laceration of pleura, initial encounter
  • S27.63XD — Laceration of pleura, subsequent encounter
  • S27.63XS — Laceration of pleura, sequela
  • S27.69 — Other injury of pleura
  • S27.69XA — Other injury of pleura, initial encounter
  • S27.69XD — Other injury of pleura, subsequent encounter
  • S27.69XS — Other injury of pleura, sequela
  • S27.8 — Injury of other specified intrathoracic organs
  • S27.80 — Injury of diaphragm
  • S27.802 — Contusion of diaphragm
  • S27.802A — Contusion of diaphragm, initial encounter
  • S27.802D — Contusion of diaphragm, subsequent encounter
  • S27.802S — Contusion of diaphragm, sequela
  • S27.803 — Laceration of diaphragm
  • S27.803A — Laceration of diaphragm, initial encounter
  • S27.803D — Laceration of diaphragm, subsequent encounter
  • S27.803S — Laceration of diaphragm, sequela
  • 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
  • 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
  • S27.812D — Contusion of esophagus (thoracic part), subsequent encounter
  • S27.812S — Contusion of esophagus (thoracic part), sequela
  • S27.813 — Laceration of esophagus (thoracic part)
  • S27.813A — Laceration of esophagus (thoracic part), initial encounter
  • S27.813D — Laceration of esophagus (thoracic part), subsequent encounter
  • S27.813S — Laceration of esophagus (thoracic part), sequela
  • S27.818 — Other injury of esophagus (thoracic part)
  • S27.818A — Other injury of esophagus (thoracic part), initial encounter
  • S27.818D — Other injury of esophagus (thoracic part), subsequent encounter
  • S27.818S — Other injury of esophagus (thoracic part), sequela
  • S27.819 — Unspecified injury of esophagus (thoracic part)
  • S27.819A — Unspecified injury of esophagus (thoracic part), initial encounter
  • S27.819D — Unspecified injury of esophagus (thoracic part), subsequent encounter
  • S27.819S — Unspecified injury of esophagus (thoracic part), sequela
  • S27.89 — Injury of other specified intrathoracic organs
  • S27.892 — Contusion of other specified intrathoracic organs
  • S27.892A — Contusion of other specified intrathoracic organs, initial encounter
  • S27.892D — Contusion of other specified intrathoracic organs, subsequent encounter
  • S27.892S — Contusion of other specified intrathoracic organs, sequela
  • S27.893 — Laceration of other specified intrathoracic organs
  • S27.893A — Laceration of other specified intrathoracic organs, initial encounter
  • S27.893D — Laceration of other specified intrathoracic organs, subsequent encounter
  • S27.893S — Laceration of other specified intrathoracic organs, sequela
  • S27.898 — Other injury of other specified intrathoracic organs
  • S27.898A — Other injury of other specified intrathoracic organs, initial encounter
  • S27.898D — Other injury of other specified intrathoracic organs, subsequent encounter
  • S27.898S — Other injury of other specified intrathoracic organs, sequela
  • S27.899 — Unspecified injury of other specified intrathoracic organs
  • S27.899A — Unspecified injury of other specified intrathoracic organs, initial encounter
  • S27.899D — Unspecified injury of other specified intrathoracic organs, subsequent encounter
  • S27.899S — Unspecified injury of other specified intrathoracic organs, sequela
  • S27.9 — Injury of unspecified intrathoracic organ
  • S27.9XXA — Injury of unspecified intrathoracic organ, initial encounter
  • S27.9XXD — Injury of unspecified intrathoracic organ, subsequent encounter
  • S27.9XXS — Injury of unspecified intrathoracic organ, sequela