🦷 Dental / OralJaw / TMJDC 9905

Jaw Lateral Excursion Limitation

Limitation in the side-to-side movement of the jaw (lateral excursion), rated under DC 9905 alongside jaw opening limitations.

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VA Rating Tiers

20%
severe lateral
10%
Meets minimum criteria
0%
Meets minimum criteria

Rating Notes

  • 20%: Lateral excursion limited to 0–6 mm — marked restriction of lateral jaw movement. DC 9905.
  • 10%: Lateral excursion limited to 7–10 mm — moderate restriction. DC 9905.
  • 0%: Lateral excursion above 10 mm — service connected but non-compensable.
  • DC 9905 — rated alongside jaw opening limitation.
  • Lateral excursion limitation is measured in mm at C&P exam.
  • Normal lateral excursion is 8–12mm per side.
  • Often rated together with jaw opening limitation — combined functional picture matters.
  • If you also have jaw limited opening, file both conditions — they may be rated together under DC 9905.

Eligibility Basics

Current symptoms
In-service event
Diagnosis or lay evidence
  • Rated under DC 9905 — same code as TMJ disorder and jaw limited opening.
  • Lateral excursion limitation means difficulty moving the jaw sideways.
  • Normal lateral excursion is approximately 8–12mm to each side.
  • VA rates lateral excursion limitation as part of the overall jaw motion assessment.

Evidence to Gather

Service Records

  • sick call or dental records showing jaw injury or complaint during service
  • records of head, face, or jaw trauma during service

Medical Evidence

  • dental or oral medicine records documenting lateral jaw movement limitation
  • oral medicine evaluation with measurement of lateral excursion
  • imaging (MRI or panoramic X-ray of jaw joint)

Lay Evidence (Buddy Statements)

  • personal statement describing difficulty moving jaw side to side
  • statement noting chewing difficulty or jaw stiffness

Diagnostic Tests

  • measurement of lateral excursion (mm) by dental provider
  • MRI of temporomandibular joint
  • panoramic dental X-ray

C&P Exam Preparation

Exam type: Dental / Oral Medicine — Jaw Range of Motion

Be ready to describe

  • difficulty moving jaw side to side — when chewing or otherwise
  • pain level during lateral motion
  • in-service cause of jaw problem
  • any treatments tried

Prep notes

  • The examiner will measure side-to-side jaw movement — do not force it beyond your comfortable limit.
  • Also report any difficulty opening your mouth fully.
  • Describe your worst-day symptoms.
  • Bring any dental or jaw imaging if available.

Quick Facts

Diagnostic Code
DC 9905
Category
Dental / Oral
Subcategory
Jaw / TMJ
Typical Claim Type
direct
Rating Range
0% – 20%

Also Known As

jaw lateral excursionlateral jaw movementjaw side-to-side limitationlateral mandibular movementjaw lateral movement problemjaw won't move sideways

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