ICD10BillableValid for clinical use

ICD-10 Code H70.819: Postauricular fistula, unspecified ear

H70.819 is a billable ICD-10 diagnosis code used to classify Postauricular fistula, unspecified ear 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 ear and mastoid process (H60-H95).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

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 ear and mastoid process (H60-H95).

When is it used?

  • May be used when a clinician documents postauricular fistula, unspecified ear 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
8Diseases of the ear and mastoid process (H60-H95)
block
H65-H75Diseases of middle ear and mastoid
category
H70Mastoiditis and related conditions
category
H70.8Other mastoiditis and related conditions
category
H70.81Postauricular fistula
currentH70.81

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

ENT Specialist

Coding guidelines

Common synonyms

Postauricular fistula, unspecified earPostauricular fistula

Frequently asked questions

Code details

CodeH70.819
SystemICD10
Display namePostauricular fistula, unspecified ear
ChapterDiseases of the ear and mastoid process (H60-H95)
BlockDiseases of middle ear and mastoid

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

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.

ICD-10 Code H70.819 for Postauricular fistula, unspecified ear | HealthAssure