ICD-10-CM Code S27.421A

Contusion of bronchus, unilateral, initial encounter

Version 2020 Billable Code

Valid for Submission

S27.421A is a billable code used to specify a medical diagnosis of contusion of bronchus, unilateral, initial encounter. The code is valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:S27.421A
Short Description:Contusion of bronchus, unilateral, initial encounter
Long Description:Contusion of bronchus, unilateral, initial encounter

Diagnostic Related Groups

The ICD-10 code S27.421A is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.

  • 183 - MAJOR CHEST TRAUMA WITH MCC
  • 184 - MAJOR CHEST TRAUMA WITH CC
  • 185 - MAJOR CHEST TRAUMA WITHOUT CC/MCC

Convert S27.421A to ICD-9

  • 862.21 - Bronchus injury-closed (Approximate Flag)

Code Classification

  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Injuries to the thorax (S20-S29)
      • Injury of other and unspecified intrathoracic organs (S27)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Chest Injuries and Disorders

The chest is the part of the body between your neck and your abdomen. It includes the ribs and breastbone. Inside your chest are several organs, including the heart, lungs, and esophagus. The pleura, a large thin sheet of tissue, lines the inside of the chest cavity.

Chest injuries and disorders include

  • Heart diseases
  • Lung diseases and collapsed lung
  • Pleural disorders
  • Esophagus disorders
  • Broken ribs
  • Thoracic aortic aneurysms
  • Disorders of the mediastinum, the space between the lungs, breastbone, and spine

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