ICD-10-CM Code T78.3
Angioneurotic edema

NON-BILLABLE

Non-Billable Code

Non-Billable means the code is not sufficient justification for admission to an acute care hospital when used a principal diagnosis. Use a child code to capture more detail.

7th Character Required

Code requires 7th Character Extension identifier. This 7th Character usually captures Episode of Care information, such as "Initial Encounter," "Subsquent Encounter," or "Sequela."

| ICD-10 from 2011 - 2016

ICD Code T78.3 is a non-billable code. To code a diagnosis of this type, you must use specify a 7th character that describes the diagnosis 'angioneurotic edema' in more detail. The 7th characters that can be added, and the resulting billable codes, are as follows:

7th Digit	Billable Code	7th Digit Specifies
A	T78.3XXA	initial encounter
D	T78.3XXD	subsequent encounter
S	T78.3XXS	sequela

What is 7th Character Extension?

For codes less than 6 characters that require a 7th character a placeholder 'X' should be assigned for all characters less than 6. The 7th character must always be the 7th position of a code. E.g. The ICD-10-CM code T67.4 (Heat exhaustion due to salt depletion) requires an Episode of Care identifier. T67.4XXA Initial Encounter or T67.4XXD Subsequent Encounter. More Info

The ICD code T783 is used to code Angioedema

Angioedema, also known as angiooedema, Quincke's edema, and angioneurotic edema, is the rapid swelling (edema) of the dermis, subcutaneous tissue, mucosa and submucosal tissues. It is very similar to urticaria, but urticaria, commonly known as hives, occurs in the upper dermis.

Specialty:	Allergy And Immunology
MeSH Codes:	D000799, D000799
ICD 9 Codes:	277.6, 995.1

Allergic angioedema: this child is unable to open his eyes due to the swelling.

Source: Wikipedia

Coding Notes for T78.3 Info for medical coders on how to properly use this ICD-10 code

Inclusion Terms: Inclusion Terms Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.: Allergic angioedema; Giant urticaria; Quincke's edema

Code Type-1 Excludes: Type-1 Excludes Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here.": Serum urticaria - instead, use code T80.6-; Urticaria - instead, use code L50.-

Related Concepts SNOMET-CT

Acquired angioedema due to lymphoproliferative disorder (disorder)
Allergic angioedema due to bite and/or sting (disorder)

Coding Advice SNOMET-CT

Possible requirement for an external cause code
Episode of care information needed

ICD-10-CM Alphabetical Index References for 'T78.3 - Angioneurotic edema'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code T78.3. Click on any term below to browse the alphabetical index.

Quincke's disease or edema (T78.3)

Bannister's disease (T78.3)

Angioedema(allergic) (any site) (with urticaria) (T78.3)

Angioneurotic edema(allergic) (any site) (with urticaria) (T78.3)

Allergy, allergic(reaction) (to) +

Disease, diseased (see: Syndrome) +

Urticaria +