S27.421 — Contusion of bronchus, unilateral
Is S27.421 billable?
No — S27.421 is a non-billable header code. S27.421 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 3 billable codes beneath S27.421.
S27.421 at a glance
| Code | S27.421 |
|---|---|
| Description | Contusion of bronchus, unilateral |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is S27.421 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to S27.421. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Injury › intrathoracic › bronchus › contusion › unilateral
Use additional code — inherited from Chapter 19
Report an additional code alongside S27.421 to fully describe the condition. S27.421 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 S27.421, but a patient may have both at the same time. When documentation supports it, S27.421 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S20-S29
The conditions below are not part of S27.421, but a patient may have both at the same time. When documentation supports it, S27.421 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)
Excludes2 — not included here — inherited from S27
The conditions below are not part of S27.421, but a patient may have both at the same time. When documentation supports it, S27.421 and the excluded code may both be reported.
Code also — inherited from S27
Two codes may be needed to describe the condition fully. Whether S27.421 is sequenced first depends on the reason for the encounter.
- any associated open wound of thorax (S21.-)
What codes fall under S27.421? (3)
How long has S27.421 existed?
S27.421 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.