ICD-10-CM Code For Injury Of Other And Unspecified Intrathoracic Organs: Group Overview

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group S27 includes traumatic injuries to intrathoracic organs that are either specified as other intrathoracic organs or left unspecified, covering damage to structures such as the heart, great vessels, lungs, and mediastinal tissues. These ICD-10-CM diagnosis codes are used to document clinical encounters involving chest trauma where the organ-level injury, severity, or complications need to be captured for care management and reporting. Accurate coding within the ICD-10-CM S27 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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ICD-10-CM S27: Injury Of Other And Unspecified Intrathoracic Organs Overview

This code group represents traumatic injuries to intrathoracic organs not otherwise specified within more specific thoracic injury codes, including structures such as the heart, great vessels, lungs, and mediastinal organs. It targets injuries to organs located within the chest cavity and is used when the specific organ injured is other than those listed or is unspecified. Accurate coding is important for capturing the clinical severity and organ involvement and influences reimbursement and claim adjudication.

When to Use

Use a code from this group when a clinical encounter documents trauma to an intrathoracic organ that is described as other than specifically listed thoracic injuries or when the precise organ injured is not specified. These codes apply for initial treatment, subsequent care, or sequelae coding when the documentation aligns with an other or unspecified intrathoracic organ injury.

ICD-10-CM Codes

162 rows

ICD-10-CM Code	Description
S27.0XXA	Traumatic pneumothorax, initial encounter
S27.0XXD	Traumatic pneumothorax, subsequent encounter
S27.0XXS	Traumatic pneumothorax, sequela
S27.1XXA	Traumatic hemothorax, initial encounter
S27.1XXD	Traumatic hemothorax, subsequent encounter
S27.1XXS	Traumatic hemothorax, sequela
S27.2XXA	Traumatic hemopneumothorax, initial encounter
S27.2XXD	Traumatic hemopneumothorax, subsequent encounter
S27.2XXS	Traumatic hemopneumothorax, sequela
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
S27.302A	Unspecified injury of lung, bilateral, initial encounter
S27.302D	Unspecified injury of lung, bilateral, subsequent encounter
S27.302S	Unspecified injury of lung, bilateral, sequela
S27.309A	Unspecified injury of lung, unspecified, initial encounter
S27.309D	Unspecified injury of lung, unspecified, subsequent encounter
S27.309S	Unspecified injury of lung, unspecified, sequela
S27.311A	Primary blast injury of lung, unilateral, initial encounter
S27.311D	Primary blast injury of lung, unilateral, subsequent encounter

Showing 1–20 of 162

DRG Codes

20 rows

DRG Code	Description
183	Major Chest Trauma with MCC
184	Major Chest Trauma with CC
185	Major Chest Trauma without CC/MCC
199	Pneumothorax with MCC
200	Pneumothorax with CC
201	Pneumothorax without CC/MCC
205	Other Respiratory System Diagnoses with MCC
206	Other Respiratory System Diagnoses without MCC
368	Major Esophageal Disorders with MCC
369	Major Esophageal Disorders with CC
370	Major Esophageal Disorders without CC/MCC
791	Prematurity with Major Problems
793	Full Term Neonate with Major Problems
913	Traumatic Injury with MCC
914	Traumatic Injury without MCC
949	Aftercare with CC/MCC
950	Aftercare without CC/MCC
963	Other Multiple Significant Trauma with MCC
964	Other Multiple Significant Trauma with CC
965	Other Multiple Significant Trauma without CC/MCC

Related Codes

S20-SUPERFICIAL-INJURY-OF-THORAX

ICD-10-CM Code For Superficial Injury Of Thorax: Group Overview

S21-OPEN-WOUND-OF-THORAX

ICD-10-CM Code For Open Wound Of Thorax: Group Overview

S22-FRACTURE-OF-RIBS-STERNUM-THORACIC-SPINE

ICD-10-CM Code For Fracture Of Rib(s), Sternum And Thoracic Spine: Group Overview

S23-DISLOCATION-AND-SPRAIN-THORAX

ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Thorax: Group Overview

S24-INJURY-OF-THORACIC-NERVES-AND-SPINAL-CORD

ICD-10-CM Code For Injury Of Nerves And Spinal Cord At Thorax Level: Group Overview

S25-INJURY-OF-BLOOD-VESSELS-OF-THORAX

ICD-10-CM Code For Injury Of Blood Vessels Of Thorax: Group Overview

S26-INJURY-OF-HEART

ICD-10-CM Code For Injury Of Heart: Group Overview

S28-CRUSHING-INJURY-OF-THORAX

ICD-10-CM Code For Crushing Injury Of Thorax And Traumatic Amputation Of Part Of Thorax: Group Overview

S29-OTHER-AND-UNSPECIFIED-INJURIES-OF-THORAX

ICD-10-CM Code For Other And Unspecified Injuries Of Thorax: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-CM Codes

162 rows

ICD-10-CM Code	Description
S27.0XXA	Traumatic pneumothorax, initial encounter
S27.0XXD	Traumatic pneumothorax, subsequent encounter
S27.0XXS	Traumatic pneumothorax, sequela
S27.1XXA	Traumatic hemothorax, initial encounter
S27.1XXD	Traumatic hemothorax, subsequent encounter
S27.1XXS	Traumatic hemothorax, sequela
S27.2XXA	Traumatic hemopneumothorax, initial encounter
S27.2XXD	Traumatic hemopneumothorax, subsequent encounter
S27.2XXS	Traumatic hemopneumothorax, sequela
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
S27.302A	Unspecified injury of lung, bilateral, initial encounter
S27.302D	Unspecified injury of lung, bilateral, subsequent encounter
S27.302S	Unspecified injury of lung, bilateral, sequela
S27.309A	Unspecified injury of lung, unspecified, initial encounter
S27.309D	Unspecified injury of lung, unspecified, subsequent encounter
S27.309S	Unspecified injury of lung, unspecified, sequela
S27.311A	Primary blast injury of lung, unilateral, initial encounter
S27.311D	Primary blast injury of lung, unilateral, subsequent encounter

Showing 1–20 of 162

DRG Codes

20 rows

DRG Code	Description
183	Major Chest Trauma with MCC
184	Major Chest Trauma with CC
185	Major Chest Trauma without CC/MCC
199	Pneumothorax with MCC
200	Pneumothorax with CC
201	Pneumothorax without CC/MCC
205	Other Respiratory System Diagnoses with MCC
206	Other Respiratory System Diagnoses without MCC
368	Major Esophageal Disorders with MCC
369	Major Esophageal Disorders with CC
370	Major Esophageal Disorders without CC/MCC
791	Prematurity with Major Problems
793	Full Term Neonate with Major Problems
913	Traumatic Injury with MCC
914	Traumatic Injury without MCC
949	Aftercare with CC/MCC
950	Aftercare without CC/MCC
963	Other Multiple Significant Trauma with MCC
964	Other Multiple Significant Trauma with CC
965	Other Multiple Significant Trauma without CC/MCC

Related Codes

S20-SUPERFICIAL-INJURY-OF-THORAX

ICD-10-CM Code For Superficial Injury Of Thorax: Group Overview

S21-OPEN-WOUND-OF-THORAX

ICD-10-CM Code For Open Wound Of Thorax: Group Overview

S22-FRACTURE-OF-RIBS-STERNUM-THORACIC-SPINE

ICD-10-CM Code For Fracture Of Rib(s), Sternum And Thoracic Spine: Group Overview

S23-DISLOCATION-AND-SPRAIN-THORAX

ICD-10-CM Code For Dislocation And Sprain Of Joints And Ligaments Of Thorax: Group Overview

S24-INJURY-OF-THORACIC-NERVES-AND-SPINAL-CORD

ICD-10-CM Code For Injury Of Nerves And Spinal Cord At Thorax Level: Group Overview

S25-INJURY-OF-BLOOD-VESSELS-OF-THORAX

ICD-10-CM Code For Injury Of Blood Vessels Of Thorax: Group Overview

S26-INJURY-OF-HEART

ICD-10-CM Code For Injury Of Heart: Group Overview

S28-CRUSHING-INJURY-OF-THORAX

ICD-10-CM Code For Crushing Injury Of Thorax And Traumatic Amputation Of Part Of Thorax: Group Overview

S29-OTHER-AND-UNSPECIFIED-INJURIES-OF-THORAX

ICD-10-CM Code For Other And Unspecified Injuries Of Thorax: Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-CM Code For Injury Of Other And Unspecified Intrathoracic Organs: Group Overview

Sign up for ICD-10-CM Code For Injury Of Other And Unspecified Intrathoracic Organs: Group Overview policy alerts

ICD-10-CM S27: Injury Of Other And Unspecified Intrathoracic Organs Overview

ICD-10-CM Code For Injury Of Other And Unspecified Intrathoracic Organs: Group Overview

Sign up for ICD-10-CM Code For Injury Of Other And Unspecified Intrathoracic Organs: Group Overview policy alerts

ICD-10-CM S27: Injury Of Other And Unspecified Intrathoracic Organs Overview

When to Use

ICD-10-CM Codes

DRG Codes

Related Codes

Which ICD-10-CM codes in the S27 group describe traumatic pneumothorax and its encounter types?

How are lung injuries specified within the S27 code group?

What bronchus injury codes exist in S27 and how do they indicate laterality and encounter?

Which related DRGs may be assigned for cases involving S27 injuries?

How does the S27 group capture encounter timing and sequela for thoracic organ injuries?

References

When to Use

ICD-10-CM Codes

DRG Codes

Related Codes

Which ICD-10-CM codes in the S27 group describe traumatic pneumothorax and its encounter types?

How are lung injuries specified within the S27 code group?

What bronchus injury codes exist in S27 and how do they indicate laterality and encounter?

Which related DRGs may be assigned for cases involving S27 injuries?

How does the S27 group capture encounter timing and sequela for thoracic organ injuries?

References