K63.821
Non-billableSmall intestinal bacterial overgrowth
Small intestinal bacterial overgrowth
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
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)
Child Codes (3)
Also Known As / Clinical Terms
Frequently Asked Questions
What is the ICD-10 code for small intestinal bacterial overgrowth?
The ICD-10-CM code for small intestinal bacterial overgrowth is K63.821. The full clinical description is "Small intestinal bacterial overgrowth". K63.821 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code K63.821 mean?
ICD-10-CM code K63.821 represents "Small intestinal bacterial overgrowth". It is classified under Chapter 11: Diseases of the Digestive System and is a non-billable header code. Use a more specific child code for billing purposes.
Is K63.821 a billable code?
No, K63.821 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under K63.821.
What chapter is K63.821 in?
K63.821 is in Chapter 11: Diseases of the Digestive System (codes K00-K95).
What are the subcategories under K63.821?
K63.821 has 3 child codes, including: K63.8211 (Small intestinal bacterial overgrowth, hydrogen-subtype), K63.8212 (Small intestnl bact overgrowth, hydrogen sulfide-subtype), K63.8219 (Small intestinal bacterial overgrowth, unspecified).
What are the UMLS CUIs for K63.821?
K63.821 is linked to 1 UMLS Concept Unique Identifier: C3160854. 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.