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ICD-10-CM Current in FY 2027

K59.1

Functional diarrhea

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where K59.1 sits in the official hierarchy. Each level is the code it is classified under.

  1. K59 Parent Other functional intestinal disorders
  2. K59.1 This code Functional diarrhea

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Excludes1

diarrhea NOS ( R19.7 )

Excludes1

change in bowel habit NOS ( R19.4 )

Inherited from K59 — Other functional intestinal disorders

Excludes1

irritable bowel syndrome with diarrhea ( K58.0 )

Excludes1

intestinal malabsorption ( K90 .-)

Inherited from K59 — Other functional intestinal disorders

Excludes1

psychogenic intestinal disorders ( F45.8 )

Inherited from K59 — Other functional intestinal disorders

Excludes2

functional disorders of stomach ( K31 .-)

Inherited from K59 — Other functional intestinal disorders

Version History

How K59.1 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Functional diarrhea

  2. FY 2026 Effective

    Unchanged

    Functional diarrhea

Related Codes

Other codes under K59

Codes whose official notes reference K59.1

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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