K20.9
Non-billableEsophagitis, unspecified
Esophagitis, unspecified
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- 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)
- hiatus hernia (K44.-)
- eosinophilic gastritis or gastroenteritis (K52.81)
Use Additional Code
Additional codes that should follow this code
- code to identify:
- alcohol abuse and dependence (F10.-)
Child Codes (2)
Also Known As / Clinical Terms
UMLS
- Esophageal inflammationC0014868
- EsophagitidesC0014868
- EsophagitisC0014868
- Esophagitis (disorder)C0014868
- Esophagitis NOSC0014868
- Esophagitis, unspecifiedC0014868
- Inflammation of the esophagusC0014868
- Inflammation of the oesophagusC0014868
- Oesophageal inflammationC0014868
- OesophagitisC0014868
- Oesophagitis NOSC0014868
- Oesophagitis, unspecifiedC0014868
- esophagitisC0014868
- esophagus inflammationC0014868
- oesophagitisC0014868
Frequently Asked Questions
What is ICD-10 code K20.9?
ICD-10-CM code K20.9 represents "Esophagitis, unspecified". It is a non-billable header code — use a more specific child code for billing purposes.
Is K20.9 a billable code?
No, K20.9 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under K20.9.
What chapter is K20.9 in?
K20.9 is in Chapter 11: Diseases of the Digestive System (codes K00-K95).
What codes cannot be used with K20.9?
K20.9 has Excludes1 notes indicating codes that cannot be used together with it, including: erosion of esophagus (K22.1-); esophagitis with gastro-esophageal reflux disease (K21.0-); reflux esophagitis (K21.0-); and 1 more.
What are the subcategories under K20.9?
K20.9 has 2 child codes, including: K20.90 (Esophagitis, unspecified without bleeding), K20.91 (Esophagitis, unspecified with bleeding).
Are additional codes required with K20.9?
Yes, when using K20.9 you should also code: code to identify:; alcohol abuse and dependence (F10.-).
What are the UMLS CUIs for K20.9?
K20.9 is linked to 1 UMLS Concept Unique Identifier: C0014868. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.