A18.6 is a billable and specific ICD-10-CM code. Accurate documentation of A18.6 facilitates proper diagnosis, effective management, and correct reimbursement.
This guideline will provide the use, official coding guidelines, and historical background of A18.6.
What is the ICD-10-CM Diagnosis Code for Tuberculosis of (inner) (middle) ear?
The ICD-10-CM diagnosis code for Tuberculosis of (inner) (middle) ear is A18.6.
Tuberculosis (TB) of the middle ear, known as tuberculous otitis media (TOM), is a rare but potentially serious infection caused by Mycobacterium tuberculosis.
It affects the middle ear structures such as the eardrum, ossicles, and Eustachian tube. TB of the inner ear, called tuberculous labyrinthitis, is even rarer and usually occurs as a complication of middle ear TB.
It can cause hearing loss, ear pain, discharge from the ear, dizziness, and ringing in the ears. The infection spreads from the lungs or nearby areas through the blood or directly.
It is more common in people with active TB or weak immune systems. Diagnosis includes ear examination, hearing tests, and TB screening.
Treatment involves anti-TB medicines and sometimes surgery if there is damage. Early treatment helps control infection and protect hearing.
Proper documentation using A18.6 ensures patients receive appropriate care and enables accurate healthcare reimbursement.
Synonyms
- Tb of bilateral ears
- Tb of left ear
- Tb of right ear
- Tuberculosis (tb) ear
- Tuberculosis of bilateral ears
- Tuberculosis of ear
History Background of ICD-10-CM Diagnosis Code A18.6
The ICD-9-CM system, first introduced in 1979, provided the initial framework for coding diseases and health-related conditions in the United States.
The ICD-9-CM diagnosis code for Tuberculosis of (inner) (middle) ear was 017.40(Tuberculosis of ear, unspecified). This coding remained consistent from 1979 to 2015.
While the ICD-9-CM system offered a basic approach to disease classification, modern healthcare needs more detail and specificity.
To address this, the ICD-10-CM system was launched in 2015, introducing a more comprehensive and accurate coding structure.
The transition from ICD-9-CM to ICD-10-CM significantly improved the ability to document and analyze conditions such as Tuberculosis of (inner) (middle) ear.
The 2025 edition of ICD-10-CM A18.6 became effective on October 1, 2024.
| Year | ICD-10-CM Code | Description |
| 2020 | A18.6 | No Change |
| 2021 | A18.6 | No Change |
| 2022 | A18.6 | No Change |
| 2023 | A18.6 | No Change |
| 2024 | A18.6 | No Change |
| 2025 | A18.6 | No Change |
Final Thoughts
Proper coding of A18.6 is essential for diagnosing and managing Tuberculosis of (inner) (middle) ear. A clear understanding of its History, and correct usage enhances medical documentation and ensures effective treatment, patient care, supports healthcare planning, and guarantees proper reimbursement for medical services.
