2027 ICD-10-CM Diagnosis Code N87.1Moderate cervical dysplasia
ICD-10-CM Codes›N00–N99›N80-N98›N87
- Billable — Valid for Submission
- Chronic Condition
N87.1 is a billable ICD-10-CM diagnosis code for moderate cervical dysplasia. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 742 through 743, 760 through 761. Coders also document this condition as cervical intraepithelial neoplasia. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified female genital disorders.
This medical diagnosis code is frequently used in OB/GYN medical specialties to designate conditions such abnormal female genital cytology.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Cervical intraepithelial neoplasia
- Cervical intraepithelial neoplasia grade 2
- Dysplasia of cervix
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to N87.1: its own notes plus those printed at N87 and Chapter 14. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Cervical intraepithelial neoplasia II [CIN II]
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- 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)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name N87.1, its category, or a range that includes it.
Excludes1 7
These codes carry an Excludes1 note naming N87.1: they are not reported together with it, unless the two conditions are unrelated.
- D06 Carcinoma in situ of cervix utericervical intraepithelial neoplasia II [CIN II] (N87.1)
- D06 Carcinoma in situ of cervix uterimoderate cervical dysplasia (N87.1)
- R87.61 Abnormal cytological findings in specimens from cervix utericervical intraepithelial neoplasia II [CIN II] (N87.1)
- R87.7 Abnormal histological findings in specimens from female genital organscervical intraepithelial neoplasia II [CIN II] (N87.1)
- R87.61 Abnormal cytological findings in specimens from cervix uteridysplasia (mild) (moderate) of cervix uteri (histologically confirmed) (N87.-) names N87.-, which includes this code
- R87.7 Abnormal histological findings in specimens from female genital organsdysplasia (mild) (moderate) of cervix uteri (histologically confirmed) (N87.-) names N87.-, which includes this code
- N85 Other noninflammatory disorders of uterus, except cervix
Index to Diseases and InjuriesGuidance
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Uterine Cervical Dysplasia
abnormal development of immature squamous epithelial cells of the uterine cervix, a term used to describe premalignant cytological changes in the cervical epithelium. these atypical cells do not penetrate the epithelial basement membrane.
Patient EducationClinical
Cervix Disorders
A cervix disorder is a problem with your cervix. The cervix is part of the female reproductive system. It is the lower, narrow end of the uterus (womb), which opens into the vagina (birth canal). The cervix has a small opening that expands during childbirth. It also allows menstrual blood to leave your body.
The full article covers:
- What is a cervix disorder?
- Who is more likely to develop cervix disorders?
- What are the symptoms of cervix disorders?
- How are cervix disorders diagnosed?
- What are the treatments for cervix disorders?
- Can cervix disorders be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert N87.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About N87.1Overview
What is the ICD-10 code for moderate cervical dysplasia?
The ICD-10-CM code for moderate cervical dysplasia is N87.1 (sometimes written as N871). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is N87.1 (Dysplasia of cervix uteri) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report moderate cervical dysplasia on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does N87.1 group to?
When moderate cervical dysplasia is the principal diagnosis on an inpatient stay, it groups to MS-DRG 742, 743, 760, 761, with relative weights from 0.7039 to 1.8448 depending on complications. Higher weights mean higher Medicare reimbursement.
Can N87.1 be reported with a code from R87.61?
Not as a rule. The Excludes1 note at N87, which applies to N87.1, lists "abnormal results from cervical cytologic examination without histologic confirmation (R87.61-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of N87.1?
Under the General Equivalence Mappings, moderate cervical dysplasia converts to ICD-9-CM 622.12 (mod dysplasia of cervix). The mapping is a direct match.
