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ICD-10-CM Codes
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K00-K95
Diseases of the digestive system
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K55-K64
Other diseases of intestines
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K59-
Other functional intestinal disorders
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2021 ICD-10-CM Diagnosis Code K59.9
2021 ICD-10-CM Diagnosis Code K59.9
Functional intestinal disorder, unspecified
2016 2017 2018 2019 2020 2021 Billable/Specific Code
- K59.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2021 edition of ICD-10-CM K59.9 became effective on October 1, 2020.
- This is the American ICD-10-CM version of K59.9 - other international versions of ICD-10 K59.9 may differ.
The following code(s) above
K59.9 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
K59.9:
- Functional disorder of intestine
ICD-10-CM K59.9 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
- 391 Esophagitis, gastroenteritis and miscellaneous digestive disorders with mcc
- 392 Esophagitis, gastroenteritis and miscellaneous digestive disorders without mcc
Convert K59.9 to ICD-9-CM
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To K59.9
K59.1 Functional diarrhea
K59.2 Neurogenic bowel, not elsewhere classified
K59.3 Megacolon, not elsewhere classified
K59.8 Other specified functional intestinal disorders
K59.89 Other specified functional intestinal disorders
K59.9
Functional intestinal disorder, unspecified
K60 Fissure and fistula of anal and rectal regions
K60.1 Chronic anal fissure
K60.2 Anal fissure, unspecified
K61 Abscess of anal and rectal regions
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
