Alphabetic Index · main term
Hypersusceptibility
Hypersusceptibility is a main term in the FY2027 ICD-10-CM Alphabetic Index (Index to Diseases and Injuries). It is a cross-reference: the Index sends you to Allergy, which lists T78.40. Confirm the code in the Tabular List before you report it.
Where the Index sends you
see Allergy, allergic (reaction) (to)
Allergy, unspecified
7th-character codes under T78.40 3
First-level subterms 51
- air-borne substance NEC (rhinitis)J30.89
- alveolitis (extrinsic)J67.9
- anaphylactic reaction or shockT78.2
- angioneurotic edemaT78.3
- animal (dander) (epidermal) (hair) (rhinitis)J30.81
- bee sting (anaphylactic shock)T63.44-
- biological see Allergy, drug
- colitis see also Colitis, allergicK52.29
- dairy productsT78.119
- dander (animal) (rhinitis)J30.81