K59.9
BillableFunctional intestinal disorder, unspecified
Functional intestinal disorder, unspecified
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 periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •functional disorders of stomachK31
Related Codes(6)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(28)
SNOMED CT
- Functional disorder of intestine81120009
- BD - Bowel dysfunction235594008
- Bowel dysfunction235594008
- Congenital functional disorders of the small intestine253767001
- Anorectal dysfunction due to pelvic organ prolapse722834005
- Functional anorectal disorder722880007
- Functional disorder of gastrointestinal tract in childhood1197715000
- Functional disorder of gastrointestinal tract150541000119104
UMLS
Clinical Terms
- Functional disorder of gastrointestinal tract in childhood
- Functional disorder of intestine
- functional bowel disorder
- Functional disorder of intestine (disorder)
- Anorectal dysfunction due to pelvic organ prolapse
- bowel disorders functional
- Congenital functional disorders of the small intestine
- Intestinal functional disorder NOS
- Functional disorder of gastrointestinal tract
- Intestinal functional disorder
- BD - Bowel dysfunction
- Bowel dysfunction
- Functional anorectal disorder
Frequently Asked Questions
What is the ICD-10 code for functional intestinal disorder, unspecified?
The ICD-10-CM code for functional intestinal disorder, unspecified is K59.9. The full clinical description is "Functional intestinal disorder, unspecified". K59.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code K59.9 mean?
ICD-10-CM code K59.9 represents “Functional intestinal disorder, unspecified”. It is classified under Chapter 11: Diseases of the Digestive System and is a billable/specific code that can be used on a claim.
Is K59.9 a billable code?
Yes, K59.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is K59.9 in?
K59.9 is in Chapter 11: Diseases of the Digestive System (codes K00-K95).
What codes cannot be used with K59.9?
K59.9 has Excludes1 notes indicating codes that cannot be used together with it, including: change in bowel habit NOS (R19.4); intestinal malabsorption (K90.-); psychogenic intestinal disorders (F45.8).
What SNOMED CT codes does K59.9 map to?
K59.9 maps to 7 SNOMED CT concepts: 722834005, 235594008, 253767001, 722880007, 150541000119104, and 2 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for K59.9?
K59.9 is linked to 1 UMLS Concept Unique Identifier: C0016807. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does K59.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like functional intestinal disorder, unspecified affect a person's functioning: body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of K59.9?
K59.9 maps to the ICD-11 code: DD93.Z (Functional digestive disorders of infants, toddlers or children, unspecified).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.