kodex

Kodex

ICD-10-CM
Code

T78.40XD

subsequent encounter

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Hierarchy

  • S00-T88 Injury, poisoning and certain other consequences of external causes (S00-T88)
    • T66-T78 Other and unspecified effects of external causes (T66-T78)
      • T78 Adverse effects, not elsewhere classified
        • T78.4 Other and unspecified allergy

Long Title

T78.40XD

  • Allergy, unspecified subsequent encounter

Notes

S00-T88

  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

Inclusion Terms

T78.40XD

  • Allergic reaction NOS
  • Hypersensitivity NOS

T78.40

  • Allergic reaction NOS
  • Hypersensitivity NOS

Use Additional

S00-T88

  • code to identify any retained foreign body, if applicable (Z18.-)
    • Z18 Retained foreign body fragments

Excludes 1

T78.4

  • specified types of allergic reaction such as:
  • allergic diarrhea (K52.29)
    • K52.29 Other allergic and dietetic gastroenteritis and colitis
  • allergic gastroenteritis and colitis (K52.29)
    • K52.29 Other allergic and dietetic gastroenteritis and colitis
  • dermatitis (L23-L25, L27.-)
    • L27 Dermatitis due to substances taken internally
  • K52.21 Food protein-induced enterocolitis syndrome
  • K52.22 Food protein-induced enteropathy
  • hay fever (J30.1)
    • J30.1 Allergic rhinitis due to pollen

S00-T88

  • P10-P15 Birth trauma (P10-P15)
  • obstetric trauma (O70-O71)

Excludes 2

T78

  • complications of surgical and medical care NEC (T80-T88)
    • T80-T88 Complications of surgical and medical care, not elsewhere classified (T80-T88)