T28.9
Non-billableCorrosions of other and unspecified internal organs
Corrosions of other and unspecified internal organs
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Code First
The underlying condition must be sequenced before this code
- (T51-T65) to identify chemical and intent
Child Codes (3)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code T28.9?
ICD-10-CM code T28.9 represents "Corrosions of other and unspecified internal organs". It is a non-billable header code — use a more specific child code for billing purposes.
Is T28.9 a billable code?
No, T28.9 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under T28.9.
What chapter is T28.9 in?
T28.9 is in Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (codes S00-T88).
What codes cannot be used with T28.9?
T28.9 has Excludes1 notes indicating codes that cannot be used together with it, including: birth trauma (P10-P15); obstetric trauma (O70-O71).
What are the subcategories under T28.9?
T28.9 has 3 child codes, including: T28.90 (Corrosions of unspecified internal organs), T28.91 (Corrosions of ear drum), T28.99 (Corrosions of other internal organs).
Are additional codes required with T28.9?
Yes, when using T28.9 you should also code: code to identify any retained foreign body, if applicable (Z18.-); external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98).
What are the UMLS CUIs for T28.9?
T28.9 is linked to 1 UMLS Concept Unique Identifier: C0478411. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.