K62.82 Dysplasia of anus

Billable ICD-10-CM code, FY2026.

Applicable to

• Anal intraepithelial neoplasia I and II (AIN I and II) (histologically confirmed)
• Dysplasia of anus NOS
• Mild and moderate dysplasia of anus (histologically confirmed)

Excludes1 (never code together)

• abnormal results from anal cytologic examination without histologic confirmation (R85.61-)
• anal intraepithelial neoplasia III (D01.3)
• carcinoma in situ of anus (D01.3)
• HGSIL of anus (R85.613)
• severe dysplasia of anus (D01.3)

Applies from K62 Other diseases of anus and rectum

Includes

• anal canal

Excludes2 (not included here)

• colostomy and enterostomy malfunction (K94.0-, K94.1-)
• fecal incontinence (R15.-)
• hemorrhoids (K64.-)

Applies from K62.8 Other specified diseases of anus and rectum

Excludes2 (not included here)

• ulcerative proctitis (K51.2)

MS-DRG index

Defines the logic of DRG(s) 393-395 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 569.44 Dysplasia of anus

Code annotations containing back-references to K62.82

Back-references to K62.82

• Type 1 Excludes: D01.3 Carcinoma in situ of anus and anal canal ("anal intraepithelial neoplasia I and II [AIN I and AIN II] (K62.82)")
• Type 1 Excludes: R85.61 Abnormal cytologic smear of anus ("anal intraepithelial neoplasia I [AIN I] (K62.82)")
• Type 1 Excludes: R85.61 Abnormal cytologic smear of anus ("anal intraepithelial neoplasia II [AIN II] (K62.82)")
• Type 1 Excludes: R85.61 Abnormal cytologic smear of anus ("dysplasia (mild) (moderate) of anus (histologically confirmed) (K62.82)")

Diagnosis Index entries for K62.82

• Dysplasia › anus (histologically confirmed) (mild) (moderate)
• Neoplasia › intraepithelial (histologically confirmed) › anal (AIN) (histologically confirmed)
• Neoplasia › intraepithelial (histologically confirmed) › anal (AIN) (histologically confirmed) › grade I
• Neoplasia › intraepithelial (histologically confirmed) › anal (AIN) (histologically confirmed) › grade II

Nearby codes

• K62.5 Hemorrhage of anus and rectum
• K62.6 Ulcer of anus and rectum
• K62.7 Radiation proctitis
• K62.8 Other specified diseases of anus and rectum
• K62.81 Anal sphincter tear (healed) (nontraumatic) (old)
• K62.82 Dysplasia of anus (this code)
• K62.89 Other specified diseases of anus and rectum
• K62.9 Disease of anus and rectum, unspecified