MCMCB Pro
H93.242

H93.242Temporary auditory threshold shift, left ear

Billable / specific codeICD-10-CMleft

H93.242 is a billable, specific ICD-10-CM code for temporary auditory threshold shift, left ear. It is valid for submission on a claim.

Risk adjustment

H93.242 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

H93.242 is named in 6 Medicare coverage policies 6 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A53052Billing and Coding: Home Health Speech-Language Pathology
  • A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
  • A56773Billing and Coding: Neurophysiology Evoked Potentials (NEPs)
  • A56868Billing and Coding: Outpatient Speech Language Pathology

Code history

H93.242 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share H93.24. If H93.242 is not quite right, the correct code is usually one of these.

Questions about H93.242

Is H93.242 a billable ICD-10-CM code?
Yes. H93.242 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does H93.242 sit in the tabular list?
Diseases of the ear and mastoid process (H60-H95), in the block Other disorders of ear (H90-H94).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.