How to Read and Decode Medical Records (A Guide for Paralegals)

Paralegals are the front-line readers of medical records at most law firms. This guide covers the document types they encounter most often — SOAP notes, discharge summaries, imaging reports, operative notes — along with the abbreviations, lab reference ranges, and formatting conventions that make medical records navigable for legal professionals without a clinical background.

Understanding the Medical Record Ecosystem

Medical records are not a single document — they are a collection of documents produced by different clinical staff at different times, often filed separately and organized for clinical reference rather than legal review. Knowing what type of document you are reading changes what you look for.

The most common document types you will encounter:

• SOAP notes — the standard format for office visits, follow-up appointments, and physical therapy sessions.
• Hospital discharge summaries — a synthesized narrative of an inpatient stay.
• Operative reports — detailed accounts of surgical procedures.
• Emergency department records — typically a package of triage notes, nursing notes, physician notes, and discharge instructions.
• Radiology / imaging reports — written interpretations of diagnostic images.
• Laboratory reports — test results with reference ranges.
• Consultation letters — specialist opinions requested by the treating physician.
• Physical therapy and occupational therapy records — often contain detailed functional assessments.
• Pharmacy dispensing records — list medications filled, dosages, and fill dates.

SOAP Notes: The Standard Office Visit Format

SOAP stands for Subjective, Objective, Assessment, Plan. This is the near-universal format for documenting a clinical encounter.

Subjective (S)

The patient's own report: their chief complaint, symptom description, pain ratings, and history of the current illness. This section captures what the patient says, not what the clinician observes. In litigation, the Subjective section is critical because it documents the plaintiff's own statements about their symptoms at specific dates — statements that can be compared against other evidence.

Watch for: pain ratings (often on a 0–10 scale), descriptors ("stabbing," "constant," "worse with movement"), and statements about functional limitations ("unable to lift more than 5 lbs," "cannot sleep on right side").

Objective (O)

The clinician's observable and measurable findings: vital signs, physical examination findings, range-of-motion measurements, neurological findings, and review of recent test results. This section carries more evidentiary weight than the Subjective in many disputes because it reflects what the clinician measured, not what the patient reported.

Watch for: vital signs (blood pressure, heart rate, O2 saturation), range-of-motion angles (e.g., "cervical flexion to 35°, extension to 20°"), neurological findings (reflexes, sensation, strength ratings), and references to imaging or lab results reviewed at the visit.

Assessment (A)

The clinician's diagnosis — the clinical judgment about what is wrong with the patient. This section may include ICD (International Classification of Diseases) codes. In litigation, the Assessment is the key source for diagnosis entries in the chronology.

Watch for: diagnosis names, ICD codes (e.g., "M54.5 — Low back pain"), characterizations of severity ("acute," "chronic," "mild," "severe"), and causation statements ("consistent with the mechanism of injury described by patient").

Plan (P)

The treatment plan: medications prescribed, referrals ordered, procedures scheduled, follow-up timing, and patient instructions. In litigation, the Plan section documents the treatment the plaintiff received (or was prescribed but did not receive — which is also relevant).

Watch for: prescription names and dosages, referrals to specialists or imaging, ordered procedures, work restrictions or activity limitations, and follow-up intervals.

Hospital Discharge Summaries

A discharge summary is the most comprehensive single document in a hospital record. It is dictated (or generated) by the attending physician at discharge and covers the full inpatient stay. Key sections to read closely:

• Admitting diagnosis — what prompted hospitalization. Compare this to the chief complaint in the ED record for consistency.
• Hospital course — a narrative of what happened during the stay, including procedures performed, complications, and the patient's response to treatment.
• Discharge diagnosis — may differ from the admitting diagnosis if additional conditions were identified during the stay.
• Discharge condition — the patient's functional state at discharge (e.g., "ambulatory with assist," "requires home health").
• Discharge medications — the complete medication list at discharge, which may differ significantly from the admission list.
• Follow-up instructions — which providers the patient was instructed to see post-discharge, and when.

Imaging Reports

Radiologists write the imaging report; the treating physician may or may not review or reference it separately. In litigation, the radiologist's report is the official interpretation of record — but the treating physician's clinical correlation of that report (in their SOAP note) is also important.

Key terms to understand:

• Unremarkable / within normal limits: No significant abnormality found. This phrasing is common in litigation when the defense argues the imaging does not support the claimed injury severity.
• Degenerative changes / degenerative disc disease: Age-related wear in the spine. Common in personal injury cases — the defense argues it is pre-existing; the plaintiff argues the trauma accelerated or aggravated it.
• Herniation, bulge, protrusion, extrusion: Gradations of disc pathology. These terms have specific clinical meanings that an expert may address.
• Impression: The radiologist's clinical conclusion — the most important paragraph in an imaging report. Extract this verbatim for the chronology.
• Comparison to prior study: When the radiologist compares the current image to a prior one, the comparison statement can be valuable in establishing whether a condition is new or worsening.

Common Medical Abbreviations

Medical records are dense with abbreviations. The most frequently encountered:

For a full searchable reference of medical abbreviations for legal teams — covering vital signs, diagnoses, procedures, anatomy, billing codes, and more — see our free glossary.

Laboratory Reports

Lab reports list test results alongside reference ranges (the normal values for each test). Results outside the reference range are typically flagged with an "H" (high) or "L" (low). In most personal injury chronologies, lab results are not the focus — but they can be relevant in cases involving trauma-related blood loss, organ damage, or medication toxicity.

When extracting lab results for the chronology, note the test name, result, units, and whether it was outside the reference range. Avoid characterizing clinical significance — flag it for expert review.

Operative Reports

Operative reports are among the most detailed clinical documents in a surgical case. Key sections:

• Preoperative diagnosis: What the surgeon believed the problem was before operating.
• Postoperative diagnosis: What the surgeon confirmed upon direct visualization. This may differ from the preoperative diagnosis.
• Procedure performed: The exact procedure, often with CPT codes. Extract verbatim.
• Operative findings: What the surgeon observed during the procedure — tears, herniations, bleeding, bone fragments. This is often the most legally significant section.
• Complications: Any adverse events during the procedure.
• Anesthesia type: General, regional, or local. Relevant in some malpractice cases.