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Code
Description

ICD-10-CM Code K59.1
Functional diarrhea

BILLABLE
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
| ICD-10 from 2011 - 2016

K59.1 is a billable ICD code used to specify a diagnosis of functional diarrhea. A 'billable code' is detailed enough to be used to specify a medical diagnosis.


The ICD code K591 is used to code Diarrhea

Diarrhea, also spelled diarrhoea, is the condition of having at least three loose or liquid bowel movements each day. It often lasts for a few days and can result in dehydration due to fluid loss. Signs of dehydration often begin with loss of the normal stretchiness of the skin and changes in personality. This can progress to decreased urination, loss of skin color, a fast heart rate, and a decrease in responsiveness as it becomes more severe. Loose but non-watery stools in babies who are breastfed, however, may be normal.

Specialty: Infectious Disease, Gastroenterology
MeSH Code: D003967
ICD 9 Code: 787.91

An electron micrograph of rotavirus, the cause of nearly 40% of hospitalizations from diarrhea in children under five.

Coding Notes for K59.1 Info for medical coders on how to properly use this ICD-10 code

Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
Diarrhea NOS - instead, use code R19.7
Irritable bowel syndrome with diarrhea - instead, use code K58.0

MS-DRG Mapping

  • DRG Group #391-392 - Esophagitis, gastroent and misc digest disorders with MCC.
  • DRG Group #391-392 - Esophagitis, gastroent and misc digest disorders without MCC.

ICD-10-CM Alphabetical Index References for 'K59.1 - Functional diarrhea'

The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code K59.1. Click on any term below to browse the alphabetical index.

Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)

Functional diarrhea (exact match)

This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 564.5 was previously used, K59.1 is the appropriate modern ICD10 code.


Parent Code: K59 - Other functional intestinal disorders

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/K591