2024 ICD-10-CM Diagnosis Code K52.21
Food protein-induced enterocolitis syndrome
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Dietetic enterocolitis
- Dietetic jejunitis
- Food protein-induced colitis in infant
- Food protein-induced proctitis in infant
- Food-protein induced enterocolitis syndrome
|Clinical Category||CCSR Category Code||Inpatient Default CCSR||Outpatient Default CCSR|
|Allergic reactions||INJ031||N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis.||N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis.|
|Noninfectious gastroenteritis||DIG022||Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.||Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.|
Tabular List of Diseases and Injuries
The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.
Inclusion TermsInclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Use Additional CodeUse Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
- code for hypovolemic shock, if present R57.1
Index to Diseases and Injuries References
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
- - Allergy, allergic (reaction) (to) - T78.40
- - Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) - See Also: Enteritis; - K52.9
- - Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) - K52.9
- - Gastroenteritis (acute) (chronic) (noninfectious) - See Also: Enteritis; - K52.9
K5221 replaces the following previously assigned ICD-10-CM code(s):
- FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
 Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.