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.
C-cell hyperplasia of the thyroid
Endocrine · 38 CFR § 4.119
Diagnostic Code 7919 is the VASRD entry for C-cell hyperplasia of the thyroid. 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.
Recorded index labels
These labels are already stored for this diagnostic code. They are not a new condition, rating, or medical relationship.
Appendix B
- C-cell hyperplasia, thyroid.
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Rate-under relationships
Rate under / reference DC 7903
If a prophylactic thyroidectomy is performed (based upon genetic testing) and antineoplastic therapy is not required, evaluate as hypothyroidism under DC 7903
Rate under / reference DC 7914
If antineoplastic therapy is required, evaluate as a malignant neoplasm under DC 7914
Special rating instructions
- If antineoplastic therapy is required, evaluate as a malignant neoplasm under DC 7914. If a prophylactic thyroidectomy is performed (based upon genetic testing) and antineoplastic therapy is not required, evaluate as hypothyroidism under DC 7903.
Body system and anatomy metadata
Body system: Endocrine
Anatomy / region tags: endocrine
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 ↗
- Diabetes Mellitus ↗ Related resourceCatalog category: Endocrinological
Related by body system only. No reviewed condition-specific form match or requirement has been established.
- Endocrine (Other than Thyroid, Parathyroid or Diabetes Mellitus) ↗ Related resourceCatalog category: Endocrinological
Related by body system only. No reviewed condition-specific form match or requirement has been established.
- Thyroid and Parathyroid ↗ Related resourceCatalog category: Endocrinological
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 § 4.119 · Source current through 2026-08-06 · Verified 2026-08-10
Registry content release: vasrd-registry-2026.08.1