Sensorineural hearing loss is commonly evaluated under Diagnostic Code 6100 using controlled audiometry and speech discrimination scores. The schedule maps test results to percentage levels in tables that raters apply after valid examinations. Military service often involves noise exposure from weapons, aircraft, engines, and industrial settings, so hearing loss claims frequently turn on whether the record links measured hearing impairment to service noise or other in service events, then on how the accepted tests line up with the regulatory tables.
Rating criteria current as of 2026-04-01 (confirm against the live eCFR before relying on any summary).
Overview and service connection context
Hearing loss can develop gradually. The VA looks at audiometric patterns, treatment history, and noise exposure history when it decides service connection questions. This page focuses on how the VA rates hearing loss after the condition is in the claim file under the rating schedule, not on proving every element of a specific claim.
What Diagnostic Code 6100 covers
DC 6100 is the central code for hearing impairment evaluated with puretone thresholds and speech recognition. The regulation pairs puretone threshold averages at specified frequencies with Maryland CNC word recognition scores. Raters locate the intersection of those measurements in the schedule tables to assign a percentage. Other auditory codes may apply in special situations, but most hearing loss ratings that veterans discuss in plain language refer to the DC 6100 framework.
How audiograms and word recognition fit together
Puretone audiometry measures how softly tones can be heard at 1000, 2000, 3000, and 4000 Hz for each ear. The schedule uses those results to build averages used in the tables. Speech recognition testing with the Maryland CNC word list measures how well single syllable words are repeated correctly at a comfortable loudness level. Poor word recognition can change the table result even when puretone averages look similar on paper.
Testing must follow VA expectations for a valid examination. That includes proper calibration, appropriate masking when needed, and examiner qualifications described in VA guidance tied to the regulations. If an exam is rejected or repeated, the outcome can change because small shifts in thresholds or word scores can move the table result.
Educational summary of how table ratings work (not a substitute for the tables)
The official 38 CFR Part 4 tables list numeric outcomes for combinations of puretone averages and CNC percentages. Rather than copy every cell here, think of the logic: worse hearing on average and worse word recognition tend to align with higher percentages. Milder patterns align with lower percentages, including 0 percent when the measurements fall in the range the schedule labels as normal for rating purposes.
Because the tables are dense, veterans often compare their audiogram printout and CNC sheet to the regulation itself or to a VSO worksheet. The educational point is that the percentage comes from the schedule intersection, not from a single symptom story alone.
Evidence and documentation the record often includes
Typical evidence includes service treatment records, deployment noise exposure summaries when available, post service audiograms, ENT notes, hearing aid fittings, and VA or private compensation and pension style exams. When private testing exists close in time to a VA exam, raters may weigh consistency between reports.
Lay statements can describe difficulty hearing in crowds, tinnitus, or needing increased volume. For the rating step, measured hearing and CNC scores usually carry the most weight under DC 6100, but lay evidence can still help tell a coherent story about functional impact when other rules allow.
C and P exam tips specific to hearing loss
Arrive rested and avoid loud noise exposure immediately before testing when clinically appropriate. Bring a list of current medications that might affect hearing or balance if your clinician should know. Answer history questions factually about noise exposure and ear infections. During the booth test, the structure is standardized; the goal is an accurate measure, not a performance.
If you use hearing aids, follow examiner instructions about whether to wear them for parts of the evaluation. Ask the examiner to explain anything you do not understand. After the exam, you can request a copy for your own records so you can compare values to the regulatory tables with a representative.
Common secondary and co occurring conditions
Many veterans also claim tinnitus under DC 6260. Tinnitus and hearing loss are often claimed together, but they use different diagnostic codes and rules. PTSD does not replace a hearing test, yet stress and sleep problems can overlap with how someone copes with hearing loss in daily life. Unrelated systems still combine under VA math, so knee or other musculoskeletal issues affect the combined percentage separately.
Strengthening the rating record in an educational sense
Organize dated audiograms newest first. Highlight CNC scores and the frequencies used for averages if your printouts are long. If word recognition was tested with a method other than Maryland CNC, note that the rater may need to reconcile methods under VA rules. When readings conflict, a clear timeline helps.
For combined rating education, use the VA disability calculator on this site. Combined ratings use VA combination tables, not straight addition.
Military noise patterns that show up in claims files
Artillery, mortars, small arms, tracked vehicles, flight lines, and ship engine rooms produce different exposure durations and peak levels. Training rotations can add weeks of repeated impulse noise. Industrial maintenance work can add steady broadband noise over years. The rating step under DC 6100 still depends on measured hearing, but service personnel records and MOS noise estimates sometimes appear in the broader file when someone studies how hearing changed from entry to separation audiograms.
Sensorineural loss versus other hearing problems
Many ratings under DC 6100 describe sensorineural impairment tied to inner ear or nerve pathways. Conductive problems involve the outer or middle ear and may have different treatment paths such as surgery or repeated infections. Mixed pictures exist. The compensation and pension examiner documents the pattern implied by testing and exam findings. The educational goal is to read your report for whether it describes a sensorineural pattern consistent with the table used.
How raters read puretone averages in plain language
The schedule looks at selected frequencies in each ear, then applies the regulatory averaging method. You might see thresholds written as decibel hearing level at 1000, 2000, 3000, and 4000 Hz. A threshold is the softest level at which you respond at least half the time during the test. When one ear is much worse, the table work still happens per ear according to the rules, and the overall outcome follows the regulatory steps rather than a single “better ear” guess.
Word recognition and real world listening
Maryland CNC scores reflect how well you understand words in quiet with amplification set for the test. Real world listening also involves background noise, reverberant rooms, and rapid speech. Some veterans have much harder times in restaurants than the quiet booth suggests. The schedule ties the percentage mainly to the regulatory measures, so understanding that distinction helps when you read why a decision focused on CNC values.
Bilateral factor and combined auditory claims
When a veteran has qualifying service connected hearing loss in both ears, VA regulations include a bilateral factor step in combined rating math. This is separate from the DC 6100 table lookup itself. The bilateral factor is a technical combination rule. For educational modeling, the calculator on this site helps illustrate how multiple percentages interact, though your final combined result always depends on the official decision.
Increased rating reviews and new exams
If measurements worsen over time, a claim for an increased rating may lead to a fresh audiology examination. Seasonal allergies, ear wax, or recent noise exposure can affect a single test day. If a result looks out of line with your history, regulations and M21 guidance describe when clarification or a new exam may be appropriate. This site does not predict outcomes; it explains that ratings can change when the evidence supports a different table result.
Working with representatives and reading rating decisions
Decision letters often cite the diagnostic code and summarize exam findings. If you see roman numerals or references to specific table rows, those map back to 38 CFR language. A Veterans Service Officer can walk through how the rater moved from audiogram numbers to the assigned percentage. If private and VA exams disagree, representatives sometimes focus on which exam followed VA protocol most closely.
Hearing aids, treatment, and the rating schedule
Using hearing aids does not “cure” sensorineural loss for rating purposes. Treatment can help function. The DC 6100 evaluation is tied to the measured impairment under schedule rules, not to whether someone purchased devices. Follow your audiologist’s plan for health reasons; this page only clarifies that devices and ratings answer different questions.
Privacy and practical record keeping
Keep copies of audiograms from base clinics, VA audiology, and civilian ENT offices in chronological order. If you move often, a single scanned folder reduces lost paperwork. Redact sensitive identifiers if you share documents informally, and use official channels for submissions to VA.
Appeals literacy without legal coaching
If you disagree with a decision, regulations describe review paths. This page does not steer anyone toward a specific appeal strategy. The educational note is that hearing decisions often turn on narrow measurement disputes, so identifying the exact puretone and CNC values the rater used is a common starting point when someone reads the decision with help.
Telehealth, mobile screening, and formal audiology
Some programs offer remote hearing screening. Screening tools can suggest follow up, but a formal rating exam typically uses calibrated equipment and protocols referenced in VA examination worksheets. If you have only screening results, the file may still need a full audiology evaluation that meets regulatory expectations.
Blast exposure and delayed symptom reports
Blast overpressure injuries can involve auditory symptoms alongside other systems. Hearing loss claims may include records from field care, later audiology, and neurology when relevant. The rating step for DC 6100 remains measurement driven, while the broader claim file explains in service events.
Occupational noise after service
Post service jobs in construction, manufacturing, or music can affect hearing too. When multiple noise sources exist across a lifetime, medical opinions sometimes discuss etiology. Rating discussions after service connection still return to schedule measurements unless a decision addresses a different legal question first.
Family communication and safety signals
Hearing loss can affect family life and safety awareness at home, such as hearing alarms or doorbells. Those functional points may appear in lay statements. The percentage assignment under DC 6100 still flows from the audiometric framework, so this section simply names why veterans sometimes describe daily life impacts alongside test scores.
Research literacy
Medical journals discuss hearing preservation and genetics. VA adjudication relies on the 38 CFR schedule and the evidence of record, not on general statistics from studies. If you read online forums, cross check any numeric claim against the official tables.
Quick glossary for reading an audiogram printout
Air conduction tests use headphones. Bone conduction uses a device behind the ear. Masking means noise is presented to the non test ear so it does not accidentally help scores. Symptoms like fullness or pain may point to different medical issues than sensorineural loss alone. Bring questions to your audiologist when the printout feels confusing.
When you compare two exams side by side, look at whether the same ear was tested with the same protocol. Small changes in technique can shift thresholds slightly without meaning your hearing changed in real life.
Related reading
Many veterans service connect both tinnitus and hearing loss. Each condition has separate diagnostic codes, subject to VA combination rules. See PTSD and knee for other systems that still affect combined ratings. Use /calculator.
Legal disclaimer
This information is for educational purposes only and is not legal or medical advice. Rating criteria are summarized from publicly available 38 CFR regulations. Consult a Veterans Service Officer (VSO) or VA-accredited attorney for advice on your specific claim.