38 CFR Part 4 — 38 CFR § 4.124a
Multiple sclerosis — VA Diagnostic Code 8018
Neurological
Diagnostic code
8018
38 CFR § 4.124a lists Diagnostic Code 8018 as “Multiple sclerosis,” with a minimum rating of 30. The code does not print its own 10, 50, or 100 percent lines. The note under diagnostic codes 8000-8025 requires ascertainable residuals for the minimum ratings. Section 3.309(a) lists “Sclerosis, multiple.” Section 3.307(a)(3) names a 7-year period for multiple sclerosis.
Reviewed 2026-10-05. Text checked against the eCFR versioner full-text XML for 2026-10-01 on 2026-10-05. Title 38 was up to date as of 2026-10-01 and last amended on 2026-08-27. The § 4.124a source note prints 29 FR 6718, May 22, 1964, as amended through 79 FR 2100, Jan. 13, 2014.
The rating criteria at each level
Multiple sclerosis — DC 8018
Rating %: 30
Criteria (verbatim). Minimum rating
| Rating % | Criteria (verbatim) |
|---|---|
| 30 | Minimum rating |
Note (diagnostic codes 8000-8025): It is required for the minimum ratings for residuals under diagnostic codes 8000-8025, that there be ascertainable residuals. Determinations as to the presence of residuals not capable of objective verification, i.e., headaches, dizziness, fatigability, must be approached on the basis of the diagnosis recorded; subjective residuals will be accepted when consistent with the disease and not more likely attributable to other disease or no disease. It is of exceptional importance that when ratings in excess of the prescribed minimum ratings are assigned, the diagnostic codes utilized as bases of evaluation be cited, in addition to the codes identifying the diagnoses.
The opening of § 4.124a, in brackets, says: “With the exceptions noted, disability from the following diseases and their residuals may be rated from 10 percent to 100 percent in proportion to the impairment of motor, sensory, or mental function. Consider especially psychotic manifestations, complete or partial loss of use of one or more extremities, speech disturbances, impairment of vision, disturbances of gait, tremors, visceral manifestations, etc., referring to the appropriate bodily system of the schedule. With partial loss of use of one or more extremities from neurological lesions, rate by comparison with the mild, moderate, severe, or complete paralysis of peripheral nerves.”
DC 8018 does not print a 0 percent line. The minimum-rating note requires ascertainable residuals for the minimum ratings under diagnostic codes 8000-8025. 38 CFR § 4.31 says: “In every instance where the schedule does not provide a zero percent evaluation for a diagnostic code, a zero percent evaluation shall be assigned when the requirements for a compensable evaluation are not met.”
38 CFR § 4.7 assigns the higher rating when the disability picture more nearly approximates the criteria required for that rating. Otherwise, the lower rating will be assigned. 38 CFR § 4.6 requires each element affecting the evidence to be studied so that decisions will be equitable and just.
Source: 38 CFR § 4.124a, Diagnostic Code 8018, eCFR full-text XML for 2026-10-01.
What the words mean in your records
Minimum rating 30
Those are the only words on the DC 8018 percentage line. A rating above that minimum is not a second line under DC 8018. The note says that when ratings in excess of the prescribed minimum ratings are assigned, the diagnostic codes utilized as bases of evaluation be cited, in addition to the codes identifying the diagnoses.
Ascertainable residuals
The note requires ascertainable residuals for the minimum ratings under diagnostic codes 8000-8025. It names headaches, dizziness, and fatigability as examples of residuals not capable of objective verification. Subjective residuals will be accepted when consistent with the disease and not more likely attributable to other disease or no disease.
Sclerosis, multiple
The schedule title is “Multiple sclerosis.” 38 CFR § 3.309(a) lists “Sclerosis, multiple.” 38 CFR § 3.307(a)(3) says the chronic disease must have become manifest to a degree of 10 percent or more within 1 year from separation, and in the same sentence says “multiple sclerosis, within 7 years.”
Not the ALS code
DC 8017 is amyotrophic lateral sclerosis at 100 percent, with its own SMC note. Section 3.318 applies to that disease. It does not name multiple sclerosis.
Evidence that speaks to each level
30 — minimum
What the rater needs to see. A diagnosis the schedule titles “Multiple sclerosis,” and ascertainable residuals, because the note requires them for the minimum ratings under diagnostic codes 8000-8025.
Where that usually lives. The diagnosis, and the findings the note describes as ascertainable residuals.
Above the minimum
What the rater needs to see. The note says the diagnostic codes used as the bases of evaluation are cited in addition to the code identifying the diagnosis.
Where that usually lives. The rating decision, for both codes.
VA’s public DBQ list, checked October 5, 2026, names “Central Nervous System and Neuromuscular Diseases.” The file is Central Nervous System and Neuromuscular Diseases.
The exam form
The schedule text is the minimum rating and the note under diagnostic codes 8000-8025. This page does not say the form replaces that text.
Related codes and how they interact
Neighboring minimum-rating codes
DC 8004 is paralysis agitans, minimum rating 30. DC 8025 is myasthenia gravis, minimum rating 30. Section 3.309(a) lists each of those names separately from “Sclerosis, multiple.”
Other neurological codes are on the neurological diagnostic-code index.
Secondary conditions and presumptions
38 CFR § 3.309(a) lists “Sclerosis, multiple.” 38 CFR § 3.307(a)(3) says: “The disease must have become manifest to a degree of 10 percent or more within 1 year (for Hansen's disease (leprosy) and tuberculosis, within 3 years; multiple sclerosis, within 7 years) from the date of separation from service as specified in paragraph (a)(2) of this section.” The chronic-disease presumption also requires that the rebuttable presumption provisions of § 3.307 are satisfied.
Section 3.309(e) does not name multiple sclerosis or sclerosis, multiple. Section 3.309(f) does not name it. Section 3.309(d) does not name it. 38 CFR § 3.318 names amyotrophic lateral sclerosis and does not name multiple sclerosis. 38 CFR § 3.320 does not name this condition. 38 CFR § 3.316 does not name it. 38 CFR § 3.320a does not name it.
A separate question, when a presumption does not decide it, is a medical question on the facts under 38 CFR § 3.310. Paragraph (a) covers disability proximately due to or the result of a service-connected disease or injury. Paragraph (b) covers increase in severity and requires a medical baseline.
Short answers
What is the VA rating for DC 8018?
Under 38 CFR § 4.124a, multiple sclerosis has a minimum rating of 30 when the note’s ascertainable-residual requirement is met. The code does not print a higher percentage of its own. Education only. VA decides on the evidence.
How long after separation does § 3.307 give for multiple sclerosis?
Section 3.307(a)(3) says multiple sclerosis, within 7 years, from the date of separation specified in paragraph (a)(2). That parenthetical also names 3 years for Hansen's disease and tuberculosis. The herbicide lists do not name multiple sclerosis.
FAQ
How does VA rate multiple sclerosis under DC 8018?
The code prints one level: minimum rating 30. The note under diagnostic codes 8000-8025 requires ascertainable residuals for that minimum. When a rating above the minimum is assigned, the note says the diagnostic codes used as the bases of evaluation are cited in addition to the diagnosis code. Education only.
What is the 7-year period?
Section 3.307(a)(3) names multiple sclerosis, within 7 years, inside the sentence that otherwise uses 1 year from the date of separation. The chronic-disease list in § 3.309(a) says “Sclerosis, multiple.” The schedule title is “Multiple sclerosis.”
Is multiple sclerosis an herbicide presumption?
Section 3.309(e) does not name multiple sclerosis. Sections 3.309(f), 3.320, 3.320a, 3.320b, and 3.316 do not name it. Section 3.318 names ALS, not multiple sclerosis.
Does DC 8018 print 100 percent?
DC 8018 prints “Minimum rating” 30. It does not print a 100 percent line of its own. The opening of § 4.124a says disability from the listed diseases and their residuals may be rated from 10 percent to 100 percent in proportion to the impairment, with the exceptions noted. A rating above the minimum cites the codes used as the bases of evaluation.
Next steps
- Read the decision for DC 8018, the minimum rating, and any additional diagnostic code the note says must be cited when the rating is above the minimum.
- The free worksheet is a place to write the code, the findings, and the records you already have. It does not file a claim or protect a filing date. An accredited representative is at find a VSO.
- Other neurological codes are on the neurological diagnostic-code index.
Education only. Not legal or medical advice. My Claim Packet is not a VA-accredited representative and does not file claims. VA decides every claim on its own evidence.
Other codes in this body system
Nearby catalog entries in Neurological, ordered by diagnostic code number. All Neurological codes
- DC 8009Brain, vessels, hemorrhage
- DC 8010Myelitis
- DC 8011Poliomyelitis, anterior
- DC 8012Hematomyelia
- DC 8013Syphilis, cerebrospinal
- DC 8014Syphilis, meningovascular
- DC 8015Tabes dorsalis
- DC 8017Amyotrophic lateral sclerosis
- DC 8019Meningitis, cerebrospinal, epidemic
- DC 8020Brain, abscess
- DC 8021Spinal cord, malignant new growth
- DC 8022Spinal cord, benign new growth
- DC 8023Progressive muscular atrophy
- DC 8024Syringomyelia
- DC 8025Myasthenia gravis
- DC 8045Residuals of traumatic brain injury (TBI)
Also: DC code lookup (tools) lists the same index in a compact layout.
Source: 38 CFR Part 4, Diagnostic Code 8018 • va.gov
⚠️ Important Disclaimer
This page provides general educational information based on public VA regulations and VA.gov resources. It is not legal or medical advice, and My Claim Packet is not a VA-accredited representative. Any worksheets or draft documents produced by the tools must be reviewed for accuracy and are not filed with VA for you. Ratings and service connection are decided case-by-case from the individual record. Consult a VA-accredited VSO, claims agent, attorney, or qualified clinician for help with your situation, and verify current rules using the linked official source.

