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ICD10BillableValid for clinical use

ICD-10 Code N64.89: Other specified disorders of breast

N64.89 is a billable ICD-10 diagnosis code used to classify Other specified disorders of breast in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).

When is it used?

  • May be used when a clinician documents other specified disorders of breast in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
14Diseases of the genitourinary system (N00-N99)
block
N60-N65Disorders of breast
category
N64Other disorders of breast
category
N64.8Other specified disorders of breast
currentN64.8

Official coding notes

Inclusion terms
  • Galactocele
  • Subinvolution of breast (postlactational)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

UrologistGynecologist

Coding guidelines

Common synonyms

Other specified disorders of breast

Frequently asked questions

Code details

CodeN64.89
SystemICD10
Display nameOther specified disorders of breast
ChapterDiseases of the genitourinary system (N00-N99)
BlockDisorders of breast

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Cyst(colloid) (mucous) (simple) (retention)DeformityDeformityDegeneration, degenerativeDegeneration, degenerativeDisease, diseasedDisorder(of)Galactocele(breast)Hematoma(traumatic) (skin surface intact)Infarct, infarctionMastopathy, mastopathiaMastopathy, mastopathia

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.