2026 ICD-10-CM Diagnosis Code N81.12Cystocele, lateral

ICD-10-CM Codes›N00–N99›N80-N98›N81

ICD-10-CM N81.12
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N81.12 is a billable ICD-10-CM diagnosis code for cystocele, lateral. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 742 through 743, 760 through 761. Coders also document this condition as lateral cystocele. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Prolapse of female genital organs.

Code Identity

ICD-10-CM Code
N81.12
Billable Status
Yes — Valid for Submission
Code Describes
Cystocele, lateral
Short Description
Cystocele, lateral
Same as the full description in the CMS dataset.
Parent Code
N81.1
Cystocele

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN80-N98Noninflammatory disorders of female genital tract
CategoryN81Female genital prolapse
This CodeN81.12Cystocele, lateral

Quality Payment Program MeasuresBilling

Medicare quality measures that can apply when N81.12 is part of the patient record.

Performing Cystoscopy at the Time of Hysterectomy for Pelvic Organ Prolapse to Detect Lower Urinary Tract Injury

High Priority: YES

Measure Type: Process

Submission Methods: Claims, Registry

Description: Percentage of patients who undergo cystoscopy to evaluate for lower urinary tract injury at the time of hysterectomy for pelvic organ prolapse.

View Measure

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Lateral cystocele

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Paravaginal cystocele

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Cystocele(-urethrocele)
      • female
        • lateral
    • Cystocele(-urethrocele)
      • female
        • paravaginal
    • Cystourethrocele
      • female
        • lateral
    • Cystourethrocele
      • female
        • paravaginal

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR GEN020
Prolapse of female genital organs
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Cystocele

    a hernia-like condition in which the weakened pelvic muscles cause the urinary bladder to drop from its normal position. fallen urinary bladder is more common in females with the bladder dropping into the vagina and less common in males with the bladder dropping into the scrotum.

  • Cystocele

    prolapse of the bladder into the vagina.

  • Cystocele Affecting Pregnancy|Cystocele affecting pregnancy

    a prolapse of the bladder into the vagina that complicates pregnancy.

Patient EducationClinical

Pelvic Floor Disorders

The pelvic floor is a group of muscles and other tissues that form a sling or hammock across the pelvis. In women, it holds the uterus, bladder, bowel, and other pelvic organs in place so that they can work properly. The pelvic floor can become weak or be injured. The main causes are pregnancy and childbirth.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert N81.12 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
618.02 Cystocele, lateral
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About N81.12Overview

Is N81.12 (Cystocele) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report cystocele, lateral on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does N81.12 group to?

When cystocele, lateral is the principal diagnosis on an inpatient stay, it groups to MS-DRG 742, 743, 760, 761, with relative weights from 0.5696 to 1.8348 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of N81.12?

Under the General Equivalence Mappings, cystocele, lateral converts to ICD-9-CM 618.02 (cystocele, lateral). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.