T27.5

⚠ Non-billable (Header)

Corrosion involving larynx and trachea with lung

Injury, poisoning and certain other consequences of external causes (S00-T88)

⚠️ This is a category header code — not billable. Use a more specific child code below.

Check This Code

📋 Code Instructions

direct

• Code first: (T51-T65) to identify chemical and intent

Child Codes (3)

T27.5XXACorrosion involving larynx and trachea with lung, initial encounter✓ Billable T27.5XXDCorrosion involving larynx and trachea with lung, subsequent encounter✓ Billable T27.5XXSCorrosion involving larynx and trachea with lung, sequela✓ Billable

Clinical Description

ICD-10-CM code T27.5 represents corrosion involving larynx and trachea with lung. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 5-character code at the 4th level of specificity. There are 3 more specific child codes under T27.5.

Frequently Asked Questions

What is ICD-10 code T27.5?

ICD-10-CM code T27.5 is "Corrosion involving larynx and trachea with lung". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is T27.5 a billable ICD-10 code?

No, T27.5 is a non-billable header code. A more specific child code must be used for billing.

Related Codes in T27

Other codes in the same category that may be relevant for differential coding:

T27.0Burn of larynx and trachea T27.1Burn involving larynx and trachea with lung T27.2Burn of other parts of respiratory tract T27.3Burn of respiratory tract, part unspecified T27.4Corrosion of larynx and trachea T27.6Corrosion of other parts of respiratory tract T27.7Corrosion of respiratory tract, part unspecified

🧪 Validate Combinations

Add T27.5 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeT27.5

BillableNo — Header code

ParentT27

CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)

Excludes10 rule(s)

Excludes20 note(s)

Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)