Diagnosis Code

H74.91 UNSPECIFIED DISORDER OF RIGHT MIDDLE EAR AND MASTOID


Code Information

Diagnosis Code: H74.91

Short Description: Unspecified disorder of right middle ear and mastoid

Long Description: Unspecified disorder of right middle ear and mastoid

The code H74.91 is VALID for claim submission

Code Classification:

  • Diseases of the ear and mastoid process (H60–H95)
    • Diseases of middle ear and mastoid (H65-H75)
      • Other disorders of middle ear mastoid (H74)
        • H74.91 Unspecified disorder of right middle ear and mastoid

Code Version: 2022 ICD-10-CM


Synonyms

  • Disorder of right mastoid
  • Disorder of right middle ear

Diagnostic Related Group(s)

The code H74.91 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Other Ear, Nose, Mouth And Throat Diagnoses With Mcc (154)
  • Other Ear, Nose, Mouth And Throat Diagnoses With Cc (155)
  • Other Ear, Nose, Mouth And Throat Diagnoses Without Cc/mcc (156)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
H74.91 Right Arrow 385.9 Dis mid ear/mastoid NOS

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
H74 Other disorders of middle ear mastoid
H74.0 Tympanosclerosis
H74.01 Tympanosclerosis, right ear
H74.02 Tympanosclerosis, left ear
H74.03 Tympanosclerosis, bilateral
H74.09 Tympanosclerosis, unspecified ear
H74.1 Adhesive middle ear disease
H74.11 Adhesive right middle ear disease
H74.12 Adhesive left middle ear disease
H74.13 Adhesive middle ear disease, bilateral
H74.19 Adhesive middle ear disease, unspecified ear
H74.2 Discontinuity and dislocation of ear ossicles
H74.20 Discontinuity and dislocation of ear ossicles, unspecified ear
H74.21 Discontinuity and dislocation of right ear ossicles
H74.22 Discontinuity and dislocation of left ear ossicles
H74.23 Discontinuity and dislocation of ear ossicles, bilateral
H74.3 Other acquired abnormalities of ear ossicles
H74.31 Ankylosis of ear ossicles
H74.311 Ankylosis of ear ossicles, right ear
H74.312 Ankylosis of ear ossicles, left ear
H74.313 Ankylosis of ear ossicles, bilateral
H74.319 Ankylosis of ear ossicles, unspecified ear
H74.32 Partial loss of ear ossicles
H74.321 Partial loss of ear ossicles, right ear
H74.322 Partial loss of ear ossicles, left ear
H74.323 Partial loss of ear ossicles, bilateral
H74.329 Partial loss of ear ossicles, unspecified ear
H74.39 Other acquired abnormalities of ear ossicles
H74.391 Other acquired abnormalities of right ear ossicles
H74.392 Other acquired abnormalities of left ear ossicles
H74.393 Other acquired abnormalities of ear ossicles, bilateral
H74.399 Other acquired abnormalities of ear ossicles, unspecified ear
H74.4 Polyp of middle ear
H74.40 Polyp of middle ear, unspecified ear
H74.41 Polyp of right middle ear
H74.42 Polyp of left middle ear
H74.43 Polyp of middle ear, bilateral
H74.8 Other specified disorders of middle ear and mastoid
H74.8X Other specified disorders of middle ear and mastoid
H74.8X1 Other specified disorders of right middle ear and mastoid
H74.8X2 Other specified disorders of left middle ear and mastoid
H74.8X3 Other specified disorders of middle ear and mastoid, bilateral
H74.8X9 Other specified disorders of middle ear and mastoid, unspecified ear
H74.9 Unspecified disorder of middle ear and mastoid
H74.90 Unspecified disorder of middle ear and mastoid, unspecified ear
H74.92 Unspecified disorder of left middle ear and mastoid
H74.93 Unspecified disorder of middle ear and mastoid, bilateral


This page was last updated on: 10/1/2023