Free, practical guides on VA disability ratings, nexus letters, C&P exams, appeals, and more. Written to help you file once and get it right.
Medical chronology guides (for attorneys and legal nurse consultants)
A plain explanation of the medical chronology used in personal injury, med-mal and nursing-home cases: what goes in each entry, how citations and gaps should be handled, and a checklist for reviewing one.
How medical chronology pricing works (per page, per hour, flat per case, software subscription), what drives the cost of a case, how to compare quotes, and Zicron's own published price.
Where the time goes in a medical chronology (record retrieval, sorting, the first pass, checking), what makes one case take longer than another, and how to get a realistic turnaround date.
The difference between a medical chronology, a narrative medical summary and an expert medical record review: what each contains, who prepares it, whether it includes opinions, and which one a case needs.
For nursing-home and elder-abuse cases: the records to request (facility chart, MDS, care plans, MAR/TAR, incident reports, hospital transfers, hospice) and the patterns to look for in each.
For legal nurse consultants: which parts of a chronology are mechanical and which are your professional judgment, how to hand off the first without the second, how to check the work, and what to settle about confidentiality and billing.
What a nursing-home or elder-abuse chronology has to do that a PI chronology doesn't: the admission baseline, care plan against daily records, change-of-condition notifications, facility-to-hospital comparisons and hospice, with the entry types to expect.
How a med-mal chronology differs from a PI one: minute-level timing, orders against administration, results against acknowledgement, late entries and audit trails, and where the chronology stops and the expert's standard-of-care opinion begins.
What a workers' comp chronology should track beyond treatment: work status and restrictions visit by visit, authorizations and denials, IME and QME reports, MMI and impairment ratings, and prior injuries to the same body part.
An honest checklist for firms and legal nurse consultants evaluating AI record review: BAAs, where the model runs, training and retention, audit trails, page citations, human review, and the questions to ask any vendor, with Zicron's own answers.
A practical guide to connecting an AI assistant to a chronology service over MCP: what MCP is, the connect steps for Claude, Claude Code, ChatGPT and Cursor, and what an assistant can and can't do with medical records.
SSDI guides (for representatives and intake firms)
The evidence SSA weighs at each of the five sequential steps, what to request from providers, and how to get a treating-source statement that holds up under 20 CFR 404.1520c (supportability and consistency).
For SSDI representation and intake firms: what to ask at each of SSA's five steps, how rule-based screening sorts leads before an intake specialist calls, what it can't tell you, and how to evaluate screening software.
AI assistant or agent? Start at Zicron for AI assistants for our offer, prices, rules and API.
VA back pain ratings from 10-100% based on range of motion. Learn the General Rating Formula for spine conditions, IVDS ...
10 min readVA knee ratings from 10-60% based on range of motion, instability, and cartilage damage. Learn how to claim both limitat...
8 min readComplete guide to PTSD VA disability ratings. Learn the rating criteria (0-100%), stressor verification, DSM-5 requireme...
12 min readSleep apnea VA ratings range from 0-100%. Learn direct and secondary service connection pathways, CPAP requirements, and...
10 min readTinnitus is the most commonly claimed VA disability. Learn the rating criteria, how to prove service connection, and com...
8 min readThe C&P exam is the most important appointment in your VA claim. Learn what to expect, how to prepare, what to say (and ...
12 min readThe PACT Act expanded VA coverage for toxic exposure conditions. Learn which conditions are now presumptive, eligibility...
10 min readVA claim denied? You have three appeal options: Supplemental Claim, Higher-Level Review, or Board Appeal. Learn which is...
10 min readVA math isn't simple addition. Learn how combined ratings are calculated, the bilateral factor, rounding rules, and stra...
8 min readA nexus letter is a medical opinion connecting your current condition to military service. Learn what makes a strong nex...
10 min readA practitioner-grade walkthrough of the Board of Veterans Appeals. The three docket types (Direct Review, Evidence Submi...
18 min readA practitioner-grade walkthrough of the VA Compensation and Pension exam. What examiners look for under the M21-1 manual...
21 min readPractical strategies for winning VA disability appeals — Supplemental Claims, Higher-Level Reviews, and Board Appeals. W...
6 min readA practitioner-grade walkthrough of the private nexus letter — also called an Independent Medical Opinion or IMO. The st...
24 min readA practitioner-grade playbook on VA secondary service connection under 38 CFR 3.310. The highest-leverage primary-to-sec...
19 min readA practitioner-grade walkthrough of VA combined rating math under 38 CFR 4.25 and the bilateral factor under 4.26. Why V...
23 min readDenied by the VA? Compare Supplemental Claims and Higher-Level Reviews — when to use each, success rates, timelines, and...
5 min readA practitioner-grade walkthrough of TDIU. The schedular path under 38 CFR 4.16(a), the extra-schedular path under 4.16(b...
21 min readFree eligibility analysis. See how strong your claim looks.
Check My Claim Strength