K52.22 vs T78.40XS
K52.22 (Food protein-induced enteropathy) compared with T78.40XS (Allergy, unspecified, sequela), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. T78.40XS carries an Excludes1 note covering K52.22: “food protein-induced enteropathy (K52.22)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| K52.22Food protein-induced enteropathy | T78.40XSAllergy, unspecified, sequela | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | K00-K95 — Diseases of the Digestive System (K00-K95) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Food protein-induced enteropathy is a billable ICD-10-CM diagnosis code (K52.22). | Allergy, unspecified, sequela is a billable ICD-10-CM diagnosis code (T78.40S). |
| 7th character | — | The appropriate 7th character is to be added to each code from category T78 |
| Includes | noninfective inflammatory bowel disease | Allergic reaction NOS Hypersensitivity NOS |
| Use additional code | code to identify type of food allergy (Z91.01-, Z91.02-) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources