ICD-10-CM Codes
K00-K95 Diseases of the digestive system
K50-K52 Noninfective enteritis and colitis
K51- Ulcerative colitis
2022 ICD-10-CM Diagnosis Code K51.30

2022 ICD-10-CM Diagnosis Code K51.30

Ulcerative (chronic) rectosigmoiditis without complications

2016

2017

2018

2019

2020

2021

2022

Billable/Specific Code

K51.30 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2022 edition of ICD-10-CM K51.30 became effective on October 1, 2021.
This is the American ICD-10-CM version of K51.30 - other international versions of ICD-10 K51.30 may differ.

Applicable To

Ulcerative (chronic) rectosigmoiditis NOS

The following code(s) above K51.30 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to K51.30:

K00-K95
2022 ICD-10-CM Range K00-K95
Diseases of the digestive system
Type 2 Excludes
- 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)
Diseases of the digestive system
K50-K52
2022 ICD-10-CM Range K50-K52
Noninfective enteritis and colitis
Includes
- noninfective inflammatory bowel disease
Type 1 Excludes
- irritable bowel syndrome (K58.-)
- megacolon (K59.3-)
Noninfective enteritis and colitis
K51
ICD-10-CM Diagnosis Code K51
Ulcerative colitis
Type 1 Excludes
- Crohn's disease [regional enteritis] (K50.-)
Use Additional
- code to identify manifestations, such as:
- pyoderma gangrenosum (L88)
Ulcerative colitis

Approximate Synonyms

Chronic ulcerative rectosigmoiditis
Proctocolitis
Ulcerative proctosigmoiditis

ICD-10-CM K51.30 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):

385 Inflammatory bowel disease with mcc
386 Inflammatory bowel disease with cc
387 Inflammatory bowel disease without cc/mcc

Convert K51.30 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change

Diagnosis Index entries containing back-references to K51.30:

Rectosigmoiditis K63.89
ICD-10-CM Diagnosis Code K63.89
Other specified diseases of intestine
- ulcerative (chronic) K51.30

ICD-10-CM Codes Adjacent To K51.30

K51.2 Ulcerative (chronic) proctitis

K51.20 …… without complications

K51.21 Ulcerative (chronic) proctitis with complications

K51.211 Ulcerative (chronic) proctitis with rectal bleeding

K51.212 Ulcerative (chronic) proctitis with intestinal obstruction

K51.213 Ulcerative (chronic) proctitis with fistula

K51.214 Ulcerative (chronic) proctitis with abscess

K51.218 Ulcerative (chronic) proctitis with other complication

K51.219 Ulcerative (chronic) proctitis with unspecified complications

K51.3 Ulcerative (chronic) rectosigmoiditis

K51.30 …… without complications

K51.31 Ulcerative (chronic) rectosigmoiditis with complications

K51.311 Ulcerative (chronic) rectosigmoiditis with rectal bleeding

K51.312 Ulcerative (chronic) rectosigmoiditis with intestinal obstruction

K51.313 Ulcerative (chronic) rectosigmoiditis with fistula

K51.314 Ulcerative (chronic) rectosigmoiditis with abscess

K51.318 Ulcerative (chronic) rectosigmoiditis with other complication

K51.319 Ulcerative (chronic) rectosigmoiditis with unspecified complications

K51.4 Inflammatory polyps of colon

K51.40 …… without complications

K51.41 Inflammatory polyps of colon with complications

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2022 ICD-10-CM Diagnosis Code K51.30

Ulcerative (chronic) rectosigmoiditis without complications

Diseases of the digestive system

Noninfective enteritis and colitis

Ulcerative colitis

Other specified diseases of intestine