K58: ICD10 Code for Irritable bowel syndrome

K58 refers to Irritable bowel syndrome, a range of intestinal and anorectal disorders involving vascular compromise, functional disturbances, or inflammatory processes. These conditions may require medical or surgical intervention depending on severity and chronicity.

Symptoms

• Abdominal pain and bloating – Common in IBS (K58), obstruction (K56), or diverticulitis (K57)
• Constipation or diarrhea – Seen in functional bowel disorders (K58, K59)
• Rectal bleeding – Often associated with hemorrhoids (K64) or fissures (K60)
• Fever and perianal swelling – Suggest abscess (K61)
• Change in bowel habits – Seen across K55–K63

Diagnosis

Diagnosis of Irritable bowel syndrome is based on clinical exam, colonoscopy, abdominal imaging (CT, MRI), manometry, or sigmoidoscopy. Lab tests and stool analysis may support diagnosis in inflammatory or infectious settings.

ICD10 Code Usage

ICD10 code K58 is used by gastroenterologists, colorectal surgeons, internists, and ER doctors for evaluating GI symptoms, surgical planning, chronic disease monitoring, and billing for diagnostic or procedural care.

Related Codes

• K55 – Vascular disorders of intestine
• K56 – Paralytic ileus and intestinal obstruction without hernia
• K57 – Diverticular disease of intestine
• K59 – Other functional intestinal disorders
• K60 – Fissure and fistula of anal and rectal regions
• K61 – Abscess of anal and rectal regions
• K62 – Other diseases of anus and rectum
• K63 – Other diseases of intestine
• K64 – Hemorrhoids and perianal venous thrombosis

FAQs

Q1: What is ICD10 code K58?
A: It refers to Irritable bowel syndrome, a category of intestinal and anorectal disorders affecting motility, vascular function, or tissue integrity.

Q2: Is irritable bowel syndrome (K58) the same as inflammatory bowel disease?
A: No—IBS is functional and non-inflammatory, while IBD (e.g., K50, K51) involves immune-mediated inflammation of the GI tract.

Q3: What causes paralytic ileus (K56)?
A: It can result from post-surgical changes, medications, electrolyte imbalances, or severe infection.

Q4: Are hemorrhoids (K64) serious?
A: Most are not dangerous but can cause discomfort and bleeding; severe cases may need surgical removal.

Q5: Who treats these conditions?
A: Gastroenterologists, general and colorectal surgeons, and primary care providers depending on the condition’s type and severity.

Conclusion

ICD10 code K58 supports accurate classification and care of Irritable bowel syndrome, improving treatment precision, procedural planning, and healthcare documentation for GI and anorectal disorders.