ICD-10-CM Code N85.8

Other specified noninflammatory disorders of uterus

Version 2020 Billable Code Diagnoses For Females Only

Valid for Submission

N85.8 is a billable code used to specify a medical diagnosis of other specified noninflammatory disorders of uterus. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code N85.8 might also be used to specify conditions or terms like acquired atrophy of uterus, arias-stella effect on endometrium, atrophic endometrium, calcification of uterus, complex cyst of uterine adnexa, cyst of uterine adnexa, etc

The code N85.8 is applicable to female patients only. It is clinically and virtually impossible to use this code on a non-female patient.

Short Description:Other specified noninflammatory disorders of uterus
Long Description:Other specified noninflammatory disorders of uterus

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code N85.8:

Inclusion Terms

Inclusion Terms
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.
  • Atrophy of uterus, acquired
  • Fibrosis of uterus NOS

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code N85.8 are found in the index:

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

  • Diagnoses for females only - Medicare Code Editor detects inconsistencies between a patient’s sex and any diagnosis on the patient’s record, this code applies to FEMALES only .


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Acquired atrophy of uterus
  • Arias-Stella effect on endometrium
  • Atrophic endometrium
  • Calcification of uterus
  • Complex cyst of uterine adnexa
  • Cyst of uterine adnexa
  • Fibrosis of uterus
  • Finding of consistency of uterus
  • Finding of consistency of uterus
  • Finding of consistency of uterus
  • Finding of consistency of uterus
  • Finding of form of uterus
  • Finding of form of uterus
  • Finding of form of uterus
  • Finding of form of uterus
  • Finding of pain of uterine contraction
  • Finding of proportion of uterus
  • Finding of sensation of gravid uterus
  • Finding of sensation of gravid uterus
  • Flaccid uterus
  • Fluid thrill in uterus
  • Focal disruption of uterus
  • Genital tear resulting from childbirth
  • Hydrometra
  • Inadequate development of endometrium
  • Incarceration of uterus
  • Mass of uterus
  • Morphological change in endometrium caused by intrauterine contraceptive device
  • Mucometra
  • Noninflammatory disorder of uterus
  • Noninflammatory disorder of uterus
  • Old uterine laceration due to obstetric cause
  • Painful scar
  • Painful uterine contractions
  • Polycystic mass of uterine adnexa
  • Previous uterine surgical scar
  • Reactive cellular changes caused by intrauterine contraceptive device
  • Rupture of uterus
  • Sacculation of uterus
  • Scarring of uterus
  • Small uterus
  • Tender scar
  • Tender scar of gravid uterus
  • Tender scar of lower uterine segment
  • Tender scar of upper uterine segment
  • Ulcer of uterus
  • Uterine cornual occlusion
  • Uterine distension syndrome
  • Uterine or cervical spasm
  • Uterine spasm
  • Uterus asymmetrical
  • Uterus boggy
  • Uterus firm
  • Uterus globular in shape
  • Uterus hard
  • Uterus heart-shaped
  • Uterus high
  • Uterus irregular in shape
  • Uterus ovoid in shape
  • Very small uterus

Diagnostic Related Groups

The ICD-10 code N85.8 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2020 through 09/30/2020.


Convert N85.8 to ICD-9

  • 621.8 - Disorders of uterus NEC (Approximate Flag)

Code Classification

  • Diseases of the genitourinary system (N00–N99)
    • Noninflammatory disorders of female genital tract (N80-N98)
      • Other noninflammatory disorders of uterus, except cervix (N85)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Uterine Diseases

The uterus, or womb, is the place where a baby grows when a woman is pregnant. The first sign of a problem with the uterus may be bleeding between periods or after sex. Causes can include hormones, thyroid problems, fibroids, polyps, cancer, infection, or pregnancy.

Treatment depends on the cause. Sometimes birth control pills treat hormonal imbalances. If a thyroid problem is the cause, treating it may also stop the bleeding. If you have cancer or hyperplasia, an overgrowth of normal cells in the uterus, you may need surgery.

With two other uterine problems, tissue that normally lines the uterus grows where it is not supposed to. In endometriosis, it grows outside the uterus. In adenomyosis, it grows in the uterus's outside walls. Pain medicine may help. Other treatments include hormones and surgery.

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