T78.02XA is the authoritative medical code for Anaphylactic reaction due to shellfish crustaceans, initial encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for anaphylactic reaction due to shellfish crustaceans, initial encounter (ICD-10-CM T78.02XA), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Anaphylactic reaction due to shellfish crustaceans, initial encounter T78.02XA is a billable ICD-10-CM diagnosis code, valid for claim submission. It is classified under category T78 (Adverse effects, not elsewhere classified), within the Other and unspecified effects of external causes T66-T78 block, within Chapter 19, Injury, Poisoning and Certain Other Consequences of External Causes S00-T88. The official tabular list attaches no additional inclusion or exclusion notes to this code.
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as T78.02XA, with their registry titles.
- T78 — Adverse effects, not elsewhere classified
- T78.0 — Anaphylactic reaction due to food
- T78.00 — Anaphylactic reaction due to unspecified food
- T78.00A — Anaphylactic reaction due to unspecified food, initial encounter
- T78.00D — Anaphylactic reaction due to unspecified food, subsequent encounter
- T78.00S — Anaphylactic reaction due to unspecified food, sequela
- T78.00XA — Anaphylactic reaction due to unspecified food, initial encounter
- T78.00XD — Anaphylactic reaction due to unspecified food, subsequent encounter
- T78.00XS — Anaphylactic reaction due to unspecified food, sequela
- T78.01 — Anaphylactic reaction due to peanuts
- T78.01A — Anaphylactic reaction due to peanuts, initial encounter
- T78.01D — Anaphylactic reaction due to peanuts, subsequent encounter
- T78.01S — Anaphylactic reaction due to peanuts, sequela
- T78.01XA — Anaphylactic reaction due to peanuts, initial encounter
- T78.01XD — Anaphylactic reaction due to peanuts, subsequent encounter
- T78.01XS — Anaphylactic reaction due to peanuts, sequela
- T78.02 — Anaphylactic reaction due to shellfish (crustaceans)
- T78.02A — Anaphylactic reaction due to shellfish (crustaceans), initial encounter
- T78.02D — Anaphylactic reaction due to shellfish (crustaceans), subsequent encounter
- T78.02S — Anaphylactic reaction due to shellfish (crustaceans), sequela
- T78.02XD — Anaphylactic reaction due to shellfish (crustaceans), subsequent encounter
- T78.02XS — Anaphylactic reaction due to shellfish (crustaceans), sequela
- T78.03 — Anaphylactic reaction due to other fish
- T78.03A — Anaphylactic reaction due to other fish, initial encounter
- T78.03D — Anaphylactic reaction due to other fish, subsequent encounter
- T78.03S — Anaphylactic reaction due to other fish, sequela
- T78.03XA — Anaphylactic reaction due to other fish, initial encounter
- T78.03XD — Anaphylactic reaction due to other fish, subsequent encounter
- T78.03XS — Anaphylactic reaction due to other fish, sequela
- T78.04 — Anaphylactic reaction due to fruits and vegetables
- T78.04A — Anaphylactic reaction due to fruits and vegetables, initial encounter
- T78.04D — Anaphylactic reaction due to fruits and vegetables, subsequent encounter
- T78.04S — Anaphylactic reaction due to fruits and vegetables, sequela
- T78.04XA — Anaphylactic reaction due to fruits and vegetables, initial encounter
- T78.04XD — Anaphylactic reaction due to fruits and vegetables, subsequent encounter
- T78.04XS — Anaphylactic reaction due to fruits and vegetables, sequela
- T78.05 — Anaphylactic reaction due to tree nuts and seeds
- T78.05A — Anaphylactic reaction due to tree nuts and seeds, initial encounter
- T78.05D — Anaphylactic reaction due to tree nuts and seeds, subsequent encounter
- T78.05S — Anaphylactic reaction due to tree nuts and seeds, sequela
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: