2026 ICD-10-CM Diagnosis Code K62.89Other specified diseases of anus and rectum
ICD-10-CM Codes›K00–K95›K55-K64›K62
- Billable — Valid for Submission
- Not Chronic
K62.89 is a billable ICD-10-CM diagnosis code for other specified diseases of anus and rectum. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 393 through 395. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Anal and rectal conditions.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute proctitis
- Anal ectropion
- Anal infection
- Anal inflammation
- Anal mucosa finding
- Anal pain
- Anal polyp
- Anal sphincter tone - finding
- Anal sphincter tone absent
- Anal stump pain
- Anal tightness
- Anal verge defect
- Anal verge finding
- Anorectal pain
- Anus non-patent
- Appearance of anal orifice - finding
- Bogginess of perirectal tissues
- Chemically-induced proctitis
- Chronic idiopathic anal pain
- Chronic proctalgia
- Cronkhite-Canada syndrome
- Damaged anal sphincter
- Distended empty rectum
- Dysplasia of large intestine
- Dysplasia of rectum
- Empty rectum
- Eversion of anal canal
- Finding of appearance of anus
- Finding of contents of rectum
- Funneled anus
- Gaping of patulous anus
- Gastrointestinal irritation
- Granuloma of intestine
- Granuloma of rectum
- Gross' disease
- Hemorrhagic enteritis of intestine
- Hemorrhagic proctitis
- Hypertrophied anal papilla
- Infection of colon caused by Spirochaetes
- Infective proctitis
- Inflammatory cloacogenic polyp
- Inflammatory polyp of anus
- Integrity of anal sphincter - finding
- Leukoplakia of anus
- Low anterior resection syndrome
- Malakoplakia
- Malakoplakia of rectum
- Mild dysplasia of rectum
- Moderate dysplasia of rectum
- Mycoplasma genitalium infection
- Mycoplasma genitalium proctitis
- Nodule of large intestine
- Pain associated with defecation
- Painful rectal bleeding
- Painful straining for stool
- Patency of anus - finding
- Perianal infection
- Proctitis
- Proctitis caused by Helicobacter
- Proctitis cystica profunda
- Proctocolitis
- Proctocolitis due to secondary syphilis
- Proctodynia
- Rectal irritation
- Rectal pain
- Rectal polyp
- Rectal stump blowout
- Squamous metaplasia of rectal mucosa
- Thickened anal verge
- Traumatic proctitis
- Weak anal sphincter
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Proctitis NOS
Use Additional Code
- code for any associated fecal incontinence R15
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Anusitis - K62.89
- Cicatrix (adherent) (contracted) (painful) (vicious) - See Also: Scar; - L90.5
- Cryptitis (anal) (rectal) - K62.89
- Cryptopapillitis (anus) - K62.89
- Cyst (colloid) (mucous) (simple) (retention)
- anus - K62.89
- rectum (epithelium) (mucous) - K62.89
- anus (acquired) - K62.89
- acquired - K62.89
- Destruction, destructive - See Also: Damage;
- rectal sphincter - K62.89
- sphincter ani - K62.89
- Disease, diseased - See Also: Syndrome;
- specified NEC - K62.89
- specified NEC - K62.89
- anal papillae - K62.89
- rectal sphincter - K62.89
- Hyperemia (acute) (passive) - R68.89
- anal mucosa - K62.89
- anal papillae - K62.89
- rectal, rectum (sphincter) - K62.89
- Infection, infected, infective (opportunistic) - B99.9
- anus, anal (papillae) (sphincter) - K62.89
- perirectal - K62.89
- rectum (sphincter) - K62.89
- Inflammation, inflamed, inflammatory (with exudation)
- anal canal, anus - K62.89
- perianal - K62.89
- perirectal - K62.89
- rectum - See Also: Proctitis; - K62.89
- anus - K62.89
- anus - K62.89
- Megarectum - K62.89
- Papillitis - H46.00
- Paralysis, paralytic (complete) (incomplete) - G83.9
- anus (sphincter) - K62.89
- Periproctitis - K62.89
- Proctalgia - K62.89
- Proctitis - K62.89
- Rectalgia - K62.89
- Rectitis - K62.89
- anus (sphincter) - K62.89
- rectum (sphincter) - K62.89
- Shelf, rectal - K62.89
- anus - K62.89
- rectal sphincter - K62.89
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Anusitis
- Cicatrix(adherent) (contracted) (painful) (vicious)
- anus
- Cicatrix(adherent) (contracted) (painful) (vicious)
- rectum
- Cryptitis(anal) (rectal)
- Cryptopapillitis(anus)
- Cyst(colloid) (mucous) (simple) (retention)
- anus
- Cyst(colloid) (mucous) (simple) (retention)
- rectum (epithelium) (mucous)
- Deformity
- anus (acquired)
- Deformity
- rectum (congenital)
- acquired
- Destruction, destructive
- rectal sphincter
- Dilatation
- sphincter ani
- Disease, diseased
- anus
- specified NEC
- Disease, diseased
- rectum
- specified NEC
- Fibrosis, fibrotic
- anal papillae
- Fibrosis, fibrotic
- rectal sphincter
- Granuloma
- rectum
- Hyperemia(acute) (passive)
- anal mucosa
- Hypertrophy, hypertrophic
- anal papillae
- Hypertrophy, hypertrophic
- rectal, rectum (sphincter)
- Infection, infected, infective(opportunistic)
- anus, anal (papillae) (sphincter)
- Infection, infected, infective(opportunistic)
- perirectal
- Infection, infected, infective(opportunistic)
- rectum (sphincter)
- Inflammation, inflamed, inflammatory(with exudation)
- anal canal, anus
- Inflammation, inflamed, inflammatory(with exudation)
- perianal
- Inflammation, inflamed, inflammatory(with exudation)
- perirectal
- Inflammation, inflamed, inflammatory(with exudation)
- rectum
- Insufficiency, insufficient
- anus
- Irritation
- anus
- Kraurosis
- ani
- Leukoplakia
- anus
- Leukoplakia
- rectum
- Megarectum
- Pain(s)
- anus
- Pain(s)
- rectum
- Papillitis
- anus
- Papillitis
- rectum
- Paralysis, paralytic(complete) (incomplete)
- anus (sphincter)
- Periproctitis
- Proctalgia
- Proctitis
- Rectalgia
- Rectitis
- Relaxation
- anus (sphincter)
- Relaxation
- rectum (sphincter)
- Shelf, rectal
- Tight, tightness
- anus
- Tight, tightness
- rectal sphincter
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Proctitis
inflammation of the mucous membrane of the rectum, the distal end of the large intestine (intestine, large).Proctocolitis
inflammation of the rectum and the distal portion of the colon.Low Anterior Resection Syndrome
postoperative complication after removal of the rectum (low anterior resection surgery or resection surgery to the lower part of the colon). it includes disordered rectum function, e.g., frequent bowel movement; fecal incontinence; and constipation.Anal Infection
an infectious process affecting the anal area.Proctocolitis
inflammation of the rectum and colon.Malakoplakia
an inflammatory reaction characterized by the presence of papules or nodules usually in the genitourinary tract. it is usually a reaction to an infection. morphologically, it consists of foamy histiocytes and characteristic basophilic inclusion bodies called michaelis-gutmann bodies.Low Anterior Resection Syndrome
a collection of symptoms following removal of part or all of the rectum that may include frequency or urgency of stools, numerous bowel movements over a few hours, fecal incontinence, constipation alternating with numerous bowel movements, and/or increased intestinal gas.
Patient EducationClinical
Anal Disorders
Your anus is the opening at the end of your large intestine. It is where stool (poop) leaves your body.
The full article covers:
- What is the anus?
- What are anal disorders?
- What are the symptoms of anal disorders?
- How are anal disorders diagnosed?
- How are anal disorders treated?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K62.89 to ICD-9-CMHistory
Code HistoryHistory
Questions About K62.89Overview
Is K62.89 (Other specified diseases of anus and rectum) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other specified diseases of anus and rectum on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does K62.89 group to?
When other specified diseases of anus and rectum is the principal diagnosis on an inpatient stay, it groups to MS-DRG 393, 394, 395, with relative weights from 0.6490 to 1.5993 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of K62.89?
Under the General Equivalence Mappings, other specified diseases of anus and rectum converts to ICD-9-CM 569.42 (anal or rectal pain) and 569.49 (rectal & anal dis NEC). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
