AutoICD API

K51.5

Non-billable

Left sided colitis

Left sided colitis

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

K50-K52

Parent Code

K51

Child Codes

2

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Left hemicolitis

Includes

Conditions included under this code

  • noninfective inflammatory bowel disease

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • irritable bowel syndrome (K58.-)
  • megacolon (K59.3-)
  • Crohn's disease [regional enteritis] (K50.-)

Excludes 2

Conditions not included here, but the patient may have both

  • 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)

Use Additional Code

Additional codes that should follow this code

  • code to identify any associated fistulas, if applicable:
  • anal fistula (K60.3-)
  • anorectal fistula (K60.5-)
  • rectal fistula (K60.4-)

Child Codes (2)

K51.50

Left sided colitis without complications

BillableK51.51

Left sided colitis with complications

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code K51.5?

ICD-10-CM code K51.5 represents "Left sided colitis". It is a non-billable header code — use a more specific child code for billing purposes.

Is K51.5 a billable code?

No, K51.5 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 2 child codes under K51.5.

What chapter is K51.5 in?

K51.5 is in Chapter 11: Diseases of the Digestive System (codes K00-K95).

What codes cannot be used with K51.5?

K51.5 has Excludes1 notes indicating codes that cannot be used together with it, including: irritable bowel syndrome (K58.-); megacolon (K59.3-); Crohn's disease [regional enteritis] (K50.-).

What are the subcategories under K51.5?

K51.5 has 2 child codes, including: K51.50 (Left sided colitis without complications), K51.51 (Left sided colitis with complications).

Are additional codes required with K51.5?

Yes, when using K51.5 you should also code: code to identify any associated fistulas, if applicable:; anal fistula (K60.3-); anorectal fistula (K60.5-); rectal fistula (K60.4-).

What are the UMLS CUIs for K51.5?

K51.5 is linked to 2 UMLS Concept Unique Identifiers: C2887820, C2887821. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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.

Try FreeView API Docs

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.