ICD-10-CM Code H75.02

Mastoiditis in infectious and parasitic diseases classified elsewhere, left ear

Version 2021 Billable Code Manifestation Diagnoses

Valid for Submission

H75.02 is a billable code used to specify a medical diagnosis of mastoiditis in infectious and parasitic diseases classified elsewhere, left ear. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions.

ICD-10:H75.02
Short Description:Mastoiditis in infec/parastc dis classd elswhr, left ear
Long Description:Mastoiditis in infectious and parasitic diseases classified elsewhere, left ear

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:

  • Manifestation diagnoses - Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and therefore should not be used as a principal diagnosis.

Diagnostic Related Groups

The ICD-10 code H75.02 is grouped in the following groups for version MS-DRG V38.0 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 09/30/2021.

  • 154 - OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITH MCC
  • 155 - OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITH CC
  • 156 - OTHER EAR, NOSE, MOUTH AND THROAT DIAGNOSES WITHOUT CC/MCC

Convert H75.02 to ICD-9

  • 383.89 - Disorders of mastoid NEC (Approximate Flag)

Code Classification

  • Diseases of the ear and mastoid process (H60–H95)
    • Diseases of middle ear and mastoid (H65-H75)
      • Oth disord of mid ear and mastoid in diseases classd elswhr (H75)

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
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Information for Patients


Ear Disorders

Your ear has three main parts: outer, middle and inner. You use all of them in hearing. Sound waves come in through your outer ear. They reach your middle ear, where they make your eardrum vibrate. The vibrations are transmitted through three tiny bones, called ossicles, in your middle ear. The vibrations travel to your inner ear, a snail-shaped organ. The inner ear makes the nerve impulses that are sent to the brain. Your brain recognizes them as sounds. The inner ear also controls balance.

A variety of conditions may affect your hearing or balance:

  • Ear infections are the most common illness in infants and young children.
  • Tinnitus, a roaring in your ears, can be the result of loud noises, medicines or a variety of other causes.
  • Meniere's disease may be the result of fluid problems in your inner ear; its symptoms include tinnitus and dizziness.
  • Ear barotrauma is an injury to your ear because of changes in barometric (air) or water pressure.

Some ear disorders can result in hearing disorders and deafness.

  • Aural polyps (Medical Encyclopedia)
  • Benign ear cyst or tumor (Medical Encyclopedia)
  • Ear discharge (Medical Encyclopedia)
  • Ear emergencies (Medical Encyclopedia)
  • Ear examination (Medical Encyclopedia)
  • Earache (Medical Encyclopedia)
  • Eardrum repair (Medical Encyclopedia)
  • Otosclerosis (Medical Encyclopedia)
  • Ruptured eardrum (Medical Encyclopedia)
  • Tympanometry (Medical Encyclopedia)
  • Wax blockage (Medical Encyclopedia)

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