This reference uses VA rating codes. For a code from a medical record, check ICD-10-CM and the service date. A clinical code alone does not establish a VA rating or a matching VA diagnostic code.
Maxilla or mandible, chronic osteomyelitis, osteonecrosis or osteoradionecrosis of
Dental and oral · 38 CFR § 4.150
Diagnostic Code 9900 is the VASRD entry for Maxilla or mandible, chronic osteomyelitis, osteonecrosis or osteoradionecrosis of. VA applies the controlling criteria, shared formulas, and special instructions shown in 38 CFR Part 4. VMC presents this material for education and reference; it does not determine a Veteran's diagnosis, service connection, or evaluation.
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Rate-under relationships
Body system and anatomy metadata
Body system: Dental and oral
Anatomy / region tags: head, face, dental oral
These tags support discovery and body-map compatibility. They do not establish Veteran-specific laterality or entitlement.
Official VA DBQ references
DBQ catalog: va-dbq-2026.09.16 · Retrieved 2026-09-16. Official VA inventory ↗
- Oral and Dental ↗ Related resourceCatalog category: Dental & Oral
Related by body system only. No reviewed condition-specific form match or requirement has been established.
VA maintains some examination forms that are not available for public use. VMC does not infer a one-code-to-one-DBQ relationship.
Evidence information
When reviewing the criteria, useful evidence categories can include diagnosis and treatment records, objective testing identified by the schedule, documented frequency/duration/severity when the criteria use those concepts, and functional effects described in medical or lay evidence. The relevant evidence depends on the actual claim and medical facts.
VMC does not diagnose conditions, guarantee a percentage, or advise anyone to exaggerate symptoms.
Related diagnostic codes
Legal basis and source identification
38 CFR § 4.150 · Source current through 2026-08-06 · Verified 2026-08-10
Registry content release: vasrd-registry-2026.08.1