K58
Irritable bowel syndrome
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
K58 is a non-billable ICD-10-CM code category for irritable bowel syndrome. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are K58.0 Irritable bowel syndrome with diarrhea, K58.1 Irritable bowel syndrome with constipation, K58.2 Mixed irritable bowel syndrome, K58.8 Other irritable bowel syndrome and 1 more. Its coding notes include 8 Excludes2 entries.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (8 notes)
Inherited from Chapter 11 Diseases of the digestive system
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Includes
Further defines or gives examples of the content of the category.
This code
- irritable colon
- spastic colon