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VA BENEFITS REFERENCE

Hypertension And Related Presumptive Pathways

Official presumptive service rules for Hypertension and 2 conditions sharing these pathways, including listed locations, dates, criteria and sources.

Independent Education · Official Sources · Last Verified October 25, 2026

These 3 named conditions share the service pathways reproduced below. Their diagnosis must still match the condition named in the governing source. Each row retains its own dates and limitations. Listing a condition does not decide an individual award.

Conditions In This Reference

  • Hypertension
  • Hypothyroidism
  • Parkinsonism

The table uses Hypertension as the row label; the same listed pathways apply to each condition above. Source-specific diagnoses remain distinct.

Published Presumptive Reference
ConditionExposureListed Service LocationsService DatesCriteria And Sources
HypertensionAgent OrangeRepublic of Vietnam and inland waterwaysJanuary 9, 1962 through May 7, 1975VA lists this statutory condition for qualifying herbicide exposure. Section 1116(a)(2) gives no condition-specific onset deadline for this category; remaining benefit requirements and rebuttal rules apply. Qualifying service in Vietnam, including its inland waterways; no minimum period is specified.

38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4

HypertensionAgent OrangeSpecified offshore waters of VietnamJanuary 9, 1962 through May 7, 1975VA lists this statutory condition for qualifying herbicide exposure. Section 1116(a)(2) gives no condition-specific onset deadline for this category; remaining benefit requirements and rebuttal rules apply. Vessel service within the statutory area extending no more than 12 nautical miles seaward of the Vietnam-Cambodia demarcation line and the coordinates in 38 U.S.C. 1116A(d). It is not a generic 12-mile distance from any coastline.

38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4 · Source 5

HypertensionAgent OrangeU.S. or Royal Thai military bases in ThailandJanuary 9, 1962 through June 30, 1976VA lists this statutory condition for qualifying herbicide exposure. Section 1116(a)(2) gives no condition-specific onset deadline for this category; remaining benefit requirements and rebuttal rules apply. Service at any U.S. or Royal Thai base, without a perimeter-duty or military-specialty restriction under the statute.

38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4

HypertensionAgent OrangeLaosDecember 1, 1965 through September 30, 1969VA lists this statutory condition for qualifying herbicide exposure. Section 1116(a)(2) gives no condition-specific onset deadline for this category; remaining benefit requirements and rebuttal rules apply. Covered active service in Laos.

38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4

HypertensionAgent OrangeMimot or Krek, Kampong Cham Province, CambodiaApril 16, 1969 through April 30, 1969VA lists this statutory condition for qualifying herbicide exposure. Section 1116(a)(2) gives no condition-specific onset deadline for this category; remaining benefit requirements and rebuttal rules apply. The statutory location is limited to Mimot or Krek in Kampong Cham Province.

38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4

HypertensionAgent OrangeGuam, American Samoa and their territorial watersJanuary 9, 1962 through July 31, 1980VA lists this statutory condition for qualifying herbicide exposure. Section 1116(a)(2) gives no condition-specific onset deadline for this category; remaining benefit requirements and rebuttal rules apply. Covered active service in either territory or its territorial waters. The statute and current VA disability page specify July 31.

38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4

HypertensionAgent OrangeJohnston Atoll and ships calling thereJanuary 1, 1972 through September 30, 1977VA lists this statutory condition for qualifying herbicide exposure. Section 1116(a)(2) gives no condition-specific onset deadline for this category; remaining benefit requirements and rebuttal rules apply. Service on Johnston Atoll or aboard a ship that called at the atoll.

38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4

HypertensionAgent OrangeIn or near the Korean Demilitarized ZoneSeptember 1, 1967 through August 31, 1971VA lists this statutory condition for qualifying herbicide exposure. Section 1116(a)(2) gives no condition-specific onset deadline for this category; remaining benefit requirements and rebuttal rules apply. The current statutory window in 38 U.S.C. 1116B is used. The older April 1968 starting date still printed in 38 CFR 3.307 is not used to narrow it.

38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4 · Source 5

HypertensionAgent OrangeAffected C-123 aircraft and associated Air Force unitsUnit-specific dates in VA tables span 1962 through 1986; verify the particular assignment periodVA lists this statutory condition for qualifying herbicide exposure. Section 1116(a)(2) gives no condition-specific onset deadline for this category; remaining benefit requirements and rebuttal rules apply. Requires regular, repeated operation, maintenance or onboard service involving affected aircraft, with the Air Force or Reserve squadron and flight, ground-maintenance or medical duties described in 38 CFR 3.307(a)(6)(v). A listed year or base alone is insufficient.

38 U.S.C. 1116, 1116A, 1116B; 38 CFR 3.307 and 3.309. Verified 2026-10-25. Source 1 · Source 2 · Source 3 · Source 4 · Source 5

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Last verified 2026-10-25. Source publication or legal effective dates are shown separately where available.

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