ICD-10 codes for Irritable Bowel Syndrome
Irritable Bowel Syndrome is coded primarily under K58, K58.0, K58.1 in the ICD-10-CM (Clinical Modification) classification. Top-level categories include K58 (Irritable bowel syndrome). The 2025 ICD-10-CM code set includes 6 codes related to irritable bowel syndrome, of which 5 are billable (specific enough to appear on a medical claim).
Irritable bowel syndrome is coded under K58 in ICD-10-CM. Subcodes specify subtype: K58.0 (with diarrhea, IBS-D), K58.1 (with constipation, IBS-C), K58.2 (mixed, IBS-M), K58.8 (other), K58.9 (without diarrhea, unspecified). These distinguishing characters were introduced in the 2020 update.
Total Codes
6
Billable Codes
5
Categories
1
SNOMED CT Concepts
10
Top 6 Relevant ICD-10 Codes
The codes most commonly assigned to irritable bowel syndrome, ranked by primary-match status, billable status, and specificity. Tap a code to see its full ICD-10 detail page.
Primary Code Categories
These are the top-level ICD-10-CM categories for irritable bowel syndrome. Click any code to see all specific subcodes within that group.
Billable / Specific Codes (5)
Specific ICD-10-CM codes that can be reported on medical claims for irritable bowel syndrome.
Cross-Mappings to Other Standards
ICD-10-CM codes for irritable bowel syndrome link to several adjacent terminologies. These mappings are precomputed from official sources (NLM RxNav, UMLS Metathesaurus, SNOMED CT International) and served via AutoICD's reference and translate APIs.
SNOMED CT
10 concepts mapped from this code group. Concept IDs include 10743008, 197125005, 235838003, 235839006, ....
Browse SNOMED CT directoryUMLS Metathesaurus
6 CUIs indexed. Sample: C0022104, C0348898, C4268639, C4268640, ....
Browse UMLS directoryICD-11
ICD-11 (WHO 2022) classifies many of these conditions under different chapter and stem-code structures. Use the converter to see specific ICD-10 to ICD-11 mappings.
Open ICD-10 to ICD-11 converterFrequently Asked Questions
What is the ICD-10 code for ibs?
The primary ICD-10-CM codes for irritable bowel syndrome are K58, K58.0, K58.1. Across all sub-categories, 6 codes are grouped under irritable bowel syndrome, with 5 marked as billable (specific enough for a medical claim).
How many ICD-10 codes are there for irritable bowel syndrome?
There are 6 ICD-10-CM codes related to irritable bowel syndrome. Of these, 5 are billable specific codes and 1 are non-billable header categories that organize the specific codes underneath them. Header codes cannot be reported on a claim by themselves.
Is there a billable ICD-10 code for irritable bowel syndrome?
Yes. 5 of the 6 ICD-10-CM codes for irritable bowel syndrome are billable. Common examples include K58.0 (Irritable bowel syndrome with diarrhea); K58.1 (Irritable bowel syndrome with constipation); K58.2 (Mixed irritable bowel syndrome). Code to the highest level of specificity supported by the documentation.
Which irritable bowel syndrome ICD-10 code should I use for billing?
The most commonly used billable codes for irritable bowel syndrome include: K58.0 (Irritable bowel syndrome with diarrhea); K58.1 (Irritable bowel syndrome with constipation); K58.2 (Mixed irritable bowel syndrome). The correct code depends on the documented clinical presentation, including any complications, episode (acute / chronic), and laterality where applicable. Always code to the highest level of specificity supported by the clinical documentation.
Is K58 a billable ICD-10 code?
No, K58 (Irritable bowel syndrome) is a non-billable header code. You need to use a more specific child code for billing purposes.
What are the SNOMED CT concepts for irritable bowel syndrome?
The ICD-10 codes for irritable bowel syndrome map to 10 SNOMED CT concepts. Examples of SNOMED CT concept IDs in this group include 10743008, 197125005, 235838003, 235839006, 1045000. SNOMED CT is a clinical terminology used in electronic health records; AutoICD's coding API returns SNOMED CT IDs alongside each ICD-10 code via the include_snomed=true flag.
What UMLS Concept Unique Identifiers (CUIs) cover irritable bowel syndrome?
The ICD-10 codes for irritable bowel syndrome are linked to 6 UMLS CUIs in the National Library of Medicine's Metathesaurus. Sample CUIs include C0022104, C0348898, C4268639, C4268640, C4268641. UMLS CUIs unify the same concept across SNOMED CT, ICD-10, ICD-11, RxNorm, MeSH, and dozens of other source vocabularies.
What are other names for irritable bowel syndrome in ICD-10?
Irritable Bowel Syndrome may also be referred to as: IBS, irritable bowel syndrome, IBS-D, IBS-C, spastic colon. The same ICD-10-CM codes apply regardless of which term appears in the clinical documentation. Synonyms are surfaced by AutoICD's NER pass and mapped to the canonical ICD-10 family above.
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