T78.4 - Other and unspecified allergy

  • Applicable to Other and unspecified allergy
  • The 2025 edition of ICD10-CM T78.4 became effective on October 1, 2024.
  • This is the American ICD10-CM version of T78.4 - other international versions of ICD10 T78.4 may differ.
  • T78.4 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • T78.4 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
  • T78.4 - Other and unspecified allergy
    • T78.4 - Other and unspecified allergy
    • T78.40 - Allergy, unspecified
    • T78.41 - Arthus phenomenon
    • T78.49 - Other allergy

Type 1 Excludes

  • specified types of allergic reaction such as:
  • allergic diarrhea (K52.29)
  • allergic gastroenteritis and colitis (K52.29)
  • dermatitis (L23-L25, L27.-)
  • food protein-induced enterocolitis syndrome (K52.21)
  • food protein-induced enteropathy (K52.22)
  • hay fever (J30.1)

The following codes above T78.4 contain annotation back-references that may be applicable to T78.4:

Chapter: S00-T88 Injury, poisoning and certain other consequences of external causes

Section: T66-T78 Other and unspecified effects of external causes

Category: T78 Adverse effects, not elsewhere classified

allergy icd 10
 
poisoning icd 10
 
Non-Billable/Non-Specific Code

Browse other similar CM codes

T78.0
 
T78.00
 
T78.01
 
T78.02
 
T78.03
 
T78.04
 
T78.05
 
T78.06
 
T78.07
 
T78.08
 
T78.09
 
T78.1
 
T78.2
 
T78.3
 
T78.4
 
T78.40
 
T78.41
 
T78.49
 
T78.8
 

Please, give attribution to our website icd-10code.com