Cold Injury Residuals Claims Guide

Frostbite is actual tissue freezing, ice crystals forming in skin and deeper tissue after prolonged exposure to freezing temperatures. It is the most severe acute cold injury and the one most likely to leave permanent nerve and circulation damage.

Immersion foot / trench foot results from prolonged exposure to wet cold above freezing, commonly from standing in cold water or wet boots for extended periods. It damages the same small blood vessels and nerves as frostbite without the tissue actually freezing.

Chilblains (pernio) are a milder, repeated cold-exposure injury, itching, red or purple patches on the skin, usually on the hands, feet, ears, or nose, from repeated exposure to cold, damp air without freezing.

All three are evaluated under the same diagnostic code, DC 7122, once residual symptoms are present. A diagnosis identifying which type of cold injury occurred is useful context, but the rating turns on the residual symptoms and findings present today, not on which label was used in service.

Before getting into the specific pathways below, it helps to understand the three things every cold injury claim ultimately has to show. This is the same basic test that applies to any VA disability claim, just applied to this condition.

1. A current diagnosis. A doctor must identify a current cold injury or frostbite residual, or lasting symptoms such as numbness, cold sensitivity, pain, or discolored skin. This is the single most important element, and the most common reason these claims are denied.
2. An in-service cold exposure or injury. Proof you were exposed to cold, or were treated for frostbite, during service. VA often concedes this on its own by making a favorable finding, for example based on winter service in Korea, Alaska, or Germany.
3. A medical link (nexus). Evidence connecting your current problem to the in-service cold exposure. For observable frostbite residuals like numbness, your own credible account of symptoms since service can be enough; for more complex conditions, a doctor's opinion is usually needed.

Cold injury is not a VA presumptive condition. Service connection must be established through one of the following pathways.

Across published DC 7122 decisions, here is how often the Board granted by the legal theory the claim was argued on:

Whether you are filing directly or secondary to another condition, the record VA actually reviews centers on a small set of documents and data points.

• A current diagnosis in your medical records: a doctor naming a cold injury or frostbite residual, or the specific symptoms (numbness, cold sensitivity, pain, discolored skin).
• Proof of the in-service cold exposure: duty location and dates, unit and mission history, winter field or guard duty, and buddy statements, especially useful when there is no in-service frostbite diagnosis on record.
• X-rays and exam findings: imaging showing arthritis or bone abnormalities in the affected part, along with exam notes on nail changes, color changes, or impaired sensation, all of which move the rating above the baseline level.
• The diagnostic codes involved: DC 7122 for the cold injury residual itself, plus whatever code applies to a related complication you're separately claiming, for example peripheral neuropathy, Raynaud's phenomenon, arthritis, skin changes, or an amputation code.
• The actual form the examiner fills out: the Cold Injury Residuals Disability Benefits Questionnaire (DBQ), discussed in more detail later in this guide.

We analyzed the Board's published DC 7122 decisions: a private nexus opinion in the file goes with a much higher grant rate, shown below.

• A current diagnosis in your records. See a doctor and get the cold injury, or its specific residual symptoms, clearly named in your medical records before you file.
• Proof of the cold exposure: duty location and dates, unit and mission history, winter field or guard duty, and buddy statements, especially when there is no in-service frostbite diagnosis.
• An exam of every affected part, listing each foot, hand, ear, or nose separately with its findings, so each gets its own rating.
• X-rays of the affected extremities, which can show the arthritis or bone changes that reach the 20 and 30 percent levels.
• A private nexus opinion that reviews your history and explains its reasoning. An opinion is most persuasive when it discusses your specific facts and gives reasons for the link to service, not just a bare conclusion. See Nexus Letters Guide.
• Photos and buddy statements. Photographs of skin discoloration or lesions, and statements from people who witnessed the cold-weather event or noticed the symptoms afterward, contribute visible, corroborating evidence. See our Buddy & Lay Statements Guide.
• Your own consistent account of symptoms. For observable residuals like numbness and cold sensitivity, a clear and consistent description of when they began and that they have continued since service can itself serve as the medical link.
• The Cold Injury Residuals DBQ, which records the findings, per part, that the rating depends on. See the DBQ Guide.

Beyond the general "no diagnosis" and "no nexus" reasons covered above, a few specific denial patterns show up often enough to call out on their own.

Cold injury residuals are rated under DC 7122, 38 CFR § 4.104.

So the first job in a cold-injury claim is to list every part that was affected, each foot, each hand, the ears, the nose, and to have each one examined and rated on its own.

Patterns the published DC 7122 decisions flag most often. Among the Board's classified service-connection denials for cold injury, here is what claims most often fell short on.

A condensed version of everything above, in the order it actually matters when you sit down to build your file.

Cold injury residuals are the long-term effects of frostbite or serious cold exposure: pain, numbness, tingling, extreme cold sensitivity, color changes, nail and skin changes, and sometimes tissue loss in the hands, feet, ears, or nose. The VA rates them under diagnostic code 7122, in the cardiovascular schedule because cold injury damages circulation and nerves (see 38 CFR § 4.104).

Reviewing how the Board of Veterans' Appeals has actually decided these claims shows a consistent pattern: a current diagnosis is the single most common reason these claims are denied, exposure to cold in service is frequently conceded by VA on its own, and veterans are allowed to describe observable symptoms like numbness and cold sensitivity themselves without needing a doctor to translate every detail.

Bring these together before you submit anything.

For the mechanics of actually submitting the claim, see the Standard Claim Guide and the Fully Developed Claim Guide (filing with all your evidence up front can speed up the decision).

Once you file, your claim moves through a series of hand-offs. Understanding who does what helps you know who to contact, and what to expect, at each stage.

1. You file the claim. Directly with VA, through VA.gov, or with the help of an accredited representative. Filing an Intent to File first can lock in an earlier effective date.
2. VA acknowledges the claim and assigns it for development. A Veteran Service Representative (VSR) is assigned to gather your service treatment records, VA and private medical records, and any other evidence needed.
3. The VSR orders a Compensation & Pension (C&P) exam if one is needed. Most cold injury claims require one, especially where the affected parts and current findings haven't already been documented.
4. The C&P exam is conducted. By a VA clinician or a contracted examiner, who completes a Cold Injury Residuals Disability Benefits Questionnaire (DBQ) documenting the findings for each affected part and, where relevant, a nexus opinion.
5. The file goes to a Rating Veteran Service Representative (RVSR), the "rater." The rater reviews the complete file, including the exam results, and decides whether service connection is warranted for each affected part and at what percentage.
6. A senior reviewer may review the decision before it's finalized, depending on the complexity of the claim.
7. VA issues the decision letter. This states whether the claim is granted or denied for each part, the rating percentage if granted, and the reasons behind the decision.
8. If you disagree, you choose an appeal lane. Higher-Level Review, Supplemental Claim, or a Board appeal, covered later in this guide.

Who's who: VSO vs. VSR vs. Rater vs. C&P Examiner

For the full walkthrough of every stage with more detail, see Inside Your Claim and Claim Stages.

The Cold Injury Residuals Disability Benefits Questionnaire (DBQ) is the standardized form an examiner completes for your condition. It structures the exam findings into the specific data points VA's rating schedule requires, per affected part: pain, numbness, or cold sensitivity, plus whether nail abnormalities, color changes, impaired sensation, tissue loss, hyperhidrosis, or X-ray findings are present. See the DBQ Guide for how these forms work, including whether a private DBQ completed by your own doctor can be submitted instead of relying solely on a VA exam.

Before your C&P exam, list every affected part so each one is actually examined, and be specific about symptoms in each: which fingers, which toes, whether the ears or nose are involved. Ask that the affected extremities be X-rayed if that hasn't already happened. Be consistent with what's already in your medical records and prior statements. For a full walkthrough of what to expect and how to prepare, see the C&P Exam Prep Guide.

Your decision letter has two parts: a narrative section explaining the reasoning (often called "reasons and bases"), and a codesheet showing the actual rating percentage for each affected part, the effective date, and the diagnostic code used. See the Reading Your Decision Letter Guide for how to find and interpret each part, or use the Letter Interpreter tool to upload your own letter and get a plain-English breakdown.

If your claim is denied, or the rating is lower than you expected, you have three main lanes:

• Supplemental Claim: refile with new and relevant evidence, such as a new nexus opinion, a fresh diagnosis, or new X-rays. See Supplemental Claim Guide.
• Higher-Level Review (HLR): a senior reviewer looks at the same evidence again for a difference of opinion, no new evidence is added. See HLR Guide.
• Board Appeal: your case goes to a Veterans Law Judge at the Board of Veterans' Appeals, with options for a direct review, an evidence docket, or a hearing. See Board Appeal Guide.

Not sure which lane fits your situation? See the Appeals decision guide for a side-by-side comparison of all three.

A grant is not always the end of the story. Keeping up with treatment and documenting your symptoms at follow-up visits protects you if VA schedules a future reexamination. Not every rating gets reexamined; understand when a rating becomes protected from future review (including Permanent and Total status) and what to do if VA proposes to reduce it. See Protect Your Rating and Future Reexaminations for the specifics.

If a new residual or complication develops later, such as arthritis or nerve damage showing up in an affected part, or if an existing rated part worsens, you can file for that condition separately or for an increased rating. See the Rating Increase Guide. For effective dates, filing an Intent to File first and continuously pursuing your claim protects the earliest possible start date for your compensation.

Cold injury keeps damaging the affected part over time, so the same limb can carry separate, service-connected add-on claims as the tissue and nerves worsen. The same foot can carry the cold-injury rating and, separately, service-connected arthritis, peripheral neuropathy, Raynaud's phenomenon, or skin changes that grew out of it. Rare skin cancers can also arise at old cold-injury sites. Each is its own claim on the same part. DC 7122's corpus of published decisions is smaller than higher-volume codes, so the data below is thinner than on some other guides; treat the patterns as a starting point, not a complete picture.

Conditions that can cause cold injury residuals (cold injury as the secondary)

Claims where cold injury residuals were argued as secondary to an already service-connected condition, for example a foot injury that changed how the foot handled cold, or a psychiatric condition. This is the "ways to connect via another condition" list:

Conditions cold injury residuals can cause (cold injury as the primary)

Conditions veterans have claimed as caused or aggravated by service-connected cold injury residuals, in other words, conditions secondary to the cold injury once it is already service-connected:

Rating Levels (Per Affected Part)

Service Connection Pathways

Complications Rated Separately (Note 1 to DC 7122)

From Filing to Decision: Who Does What