ICD-10-CM 2027
ICD-10 code for cervical atypical
From the official ICD-10-CM alphabetic index entry “Atypical, atypism › cervical”. Page updated September 29, 2026.
About coding cervical atypical
The ICD-10-CM code for cervical atypical is N87.9 (Dysplasia of cervix uteri, unspecified).
Within N87, choose N87.9 (unspecified) only when documentation doesn't support a more specific option: mild cervical dysplasia (N87.0) and moderate cervical dysplasia (N87.1).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 742 (Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC, relative weight 1.8456), DRG 743 (Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC, relative weight 1.2974), DRG 760 (Menstrual and Other Female Reproductive System Disorders with CC/MCC, relative weight 1.0129) and DRG 761 (Menstrual and Other Female Reproductive System Disorders without CC/MCC, relative weight 0.7041), in MDC 13 (Diseases and Disorders of the Female Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about cervical atypical ICD-10 codes
What is the ICD-10 code for cervical atypical?
- N87.9 — Dysplasia of cervix uteri, unspecified.
Is N87.9 billable?
- Yes. N87.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N87.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N87.9 as a principal diagnosis.
Is N87.9 a CC or MCC?
- No. N87.9 is neither a CC nor an MCC under MS-DRG v44.0.