Irritable bowel syndrome, unspecified
ICD-10 K58.9 is a billable code used to indicate a diagnosis of irritable bowel syndrome, unspecified.
Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder characterized by a combination of symptoms that can include abdominal pain, bloating, and altered bowel habits, such as diarrhea and constipation. The exact etiology of IBS remains unclear, but it is believed to involve a complex interplay of gut-brain interactions, altered gut motility, visceral hypersensitivity, and psychosocial factors. The anatomy involved primarily includes the large intestine (colon) and the small intestine, where abnormal contractions can lead to the hallmark symptoms of IBS. Disease progression varies among individuals, with some experiencing chronic symptoms while others may have intermittent episodes. Diagnostic considerations for K58.9 include ruling out other gastrointestinal conditions such as inflammatory bowel disease (IBD) and celiac disease, often through a combination of patient history, symptom assessment, and diagnostic testing like stool studies or colonoscopy. The Rome IV criteria are commonly used to aid in the diagnosis of IBS, emphasizing the importance of symptom patterns over a specified duration.
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
Standard ICD-10-CM documentation requirements apply
Various clinical presentations within this specialty area
Follow specialty-specific billing guidelines
K58.9 covers irritable bowel syndrome that does not fit into the more specific categories of IBS with diarrhea or constipation. It encompasses a range of symptoms without a definitive subtype, making it important for cases where the presentation is unclear.
K58.9 should be used when the patient's symptoms do not clearly align with IBS subtypes (K58.0 or K58.1). It is appropriate when the diagnosis of IBS is confirmed, but the specific type of IBS is not determined or documented.
Documentation should include a detailed patient history, symptom descriptions, duration of symptoms, and any diagnostic tests performed to rule out other conditions. The use of the Rome IV criteria can also support the diagnosis.
