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ICD-10-CM Codes
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K00-K95
Diseases of the digestive system
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K20-K31
Diseases of esophagus, stomach and duodenum
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K21-
Gastro-esophageal reflux disease
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2023 ICD-10-CM Diagnosis Code K21.01
2023 ICD-10-CM Diagnosis Code K21.01
Gastro-esophageal reflux disease with esophagitis, with bleeding
2021 - New Code 2022 2023 Billable/Specific Code
- K21.01 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- Short description: Gastro-esophageal reflux dis with esophagitis, with bleed
- The 2023 edition of ICD-10-CM K21.01 became effective on October 1, 2022.
- This is the American ICD-10-CM version of K21.01 - other international versions of ICD-10 K21.01 may differ.
The following code(s) above
K21.01 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
K21.01:
- K00-K95
2023 ICD-10-CM Range K00-K95
Diseases of the digestive systemType 2 Excludes- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- K20-K31
2023 ICD-10-CM Range K20-K31
Diseases of esophagus, stomach and duodenum
- K21
ICD-10-CM Diagnosis Code K21
Gastro-esophageal reflux disease
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 1 Excludes- newborn esophageal reflux (P78.83)
- 368 Major esophageal disorders with mcc
- 369 Major esophageal disorders with cc
- 370 Major esophageal disorders without cc/mcc
Code History
- 2021 (effective 10/1/2020): New code
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- Allergy, allergic (reaction) (to) T78.40
ICD-10-CM Diagnosis Code T78.40
Allergy, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Applicable To- Allergic reaction NOS
- Hypersensitivity NOS
- milk protein Z91.011 - see also Allergy, food
ICD-10-CM Diagnosis Code Z91.011
Allergy to milk products
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
Type 1 Excludes- lactose intolerance (E73.-)
- gastroesophageal reflux K21.9 - see also Reaction, adverse, food
ICD-10-CM Diagnosis Code K21.9
Gastro-esophageal reflux disease without esophagitis
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- with esophagitis (without bleeding) K21.00
ICD-10-CM Diagnosis Code K21.00
Gastro-esophageal reflux disease with esophagitis, without bleeding
2021 - New Code 2022 2023 Billable/Specific Code
- Disease, diseased - see also Syndrome
- gastroesophageal reflux (GERD) K21.9
ICD-10-CM Diagnosis Code K21.9
Gastro-esophageal reflux disease without esophagitis
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- with esophagitis (without bleeding) K21.00
ICD-10-CM Diagnosis Code K21.00
Gastro-esophageal reflux disease with esophagitis, without bleeding
2021 - New Code 2022 2023 Billable/Specific Code
- Esophagitis (acute) (alkaline) (chemical) (chronic) (infectional) (necrotic) (peptic) (postoperative) (without bleeding) K20.90
ICD-10-CM Diagnosis Code K20.90
Esophagitis, unspecified without bleeding
2021 - New Code 2022 2023 Billable/Specific Code
- Reflux K21.9
ICD-10-CM Diagnosis Code K21.9
Gastro-esophageal reflux disease without esophagitis
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- esophageal K21.9
ICD-10-CM Diagnosis Code K21.9
Gastro-esophageal reflux disease without esophagitis
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- with esophagitis (without bleeding) K21.00
ICD-10-CM Diagnosis Code K21.00
Gastro-esophageal reflux disease with esophagitis, without bleeding
2021 - New Code 2022 2023 Billable/Specific Code
- gastroesophageal K21.9
ICD-10-CM Diagnosis Code K21.9
Gastro-esophageal reflux disease without esophagitis
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- with esophagitis (without bleeding) K21.00
ICD-10-CM Diagnosis Code K21.00
Gastro-esophageal reflux disease with esophagitis, without bleeding
2021 - New Code 2022 2023 Billable/Specific Code
- Ulcer, ulcerated, ulcerating, ulceration, ulcerative
- esophagus (peptic) K22.10
ICD-10-CM Diagnosis Code K22.10
Ulcer of esophagus without bleeding
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
ICD-10-CM Codes Adjacent To K21.01
K20.0 Eosinophilic esophagitis
K20.9 Esophagitis, unspecified
K21 Gastro-esophageal reflux disease
K21.0 Gastro-esophageal reflux disease with esophagitis
K21.01
…… with bleeding
K21.9 Gastro-esophageal reflux disease without esophagitis
K22 Other diseases of esophagus
K22.0 Achalasia of cardia
K22.2 Esophageal obstruction
K22.3 Perforation of esophagus
K22.4 Dyskinesia of esophagus
K22.5 Diverticulum of esophagus, acquired
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
