Grammar pedants are used to being told their concerns are trivial. Nobody dies from a misplaced apostrophe, the argument goes, and communication survives most of what we fuss about.
Here is a rebuttal worth keeping in your pocket. This year, federal auditors examining American medical records found that between 81 and 91 percent of certain sampled high-risk diagnosis codes were not properly supported by the documentation behind them. The single most common failure was a tense error, repeated across millions of records, and the accumulated cost runs into the tens of billions of dollars.
The error
Medical records document conditions. In American healthcare, those documented conditions determine payment: private insurers covering more than thirty million older adults receive monthly amounts scaled to how ill each member’s records show them to be.
The rule is that a condition counts only if the note demonstrates the clinician engaged with it during that specific visit. The framework, built around whether the clinician monitored, evaluated, assessed, or treated the condition, is the documentation standard that determines HCC coding accuracy.
The failure mode auditors kept finding was this: a patient had a stroke in 2019. The note in 2026 says the patient “has a history of cerebrovascular accident” or, worse, simply lists “CVA” among current conditions. Read as a grammatical claim, the second version asserts a present-tense state. Read as a clinical fact, the stroke is a past event with ongoing effects that may or may not currently require management.
Acute conditions coded as though ongoing. Resolved illnesses listed without any temporal marker. In individual audits, some acute condition categories reached 100 percent error rates.
Why the language matters more than the medicine
The clinicians involved were not confused about their patients. They knew the stroke was historical. The error lived entirely in how the sentence was constructed, and the sentence is what survives the appointment.
English gives us precise tools for exactly this distinction, and clinical documentation frequently discards them. The present perfect, “has had a stroke,” locates a past event with present relevance. The simple past with an explicit marker, “stroke in 2019, no residual deficits,” closes the question entirely. The bare noun phrase, “CVA,” floats free of time and gets read by whoever encounters it next as a current fact.
Copy-paste made this structurally worse. Electronic systems let clinicians carry forward yesterday’s text, so a condition documented accurately in 2019 propagates unchanged into 2026, where the identical words now assert something false. The sentence did not change. The world did, and the tense never got updated.
The editing lesson
Every writer who works with carried-forward text has some version of this problem. Recycled bios, boilerplate paragraphs, template proposals, standing sections in annual reports. The text was true when written. Nobody re-verified it, because re-verification looks like work that produces no visible output.
Three habits follow, and they transfer to any writing that persists.
Mark time explicitly for anything that could be read as current. If the reader has to infer whether something is ongoing, the sentence is doing insufficient work. Dates are cheap.
Treat every carried-forward line as unwritten until re-checked. Text you did not verify this cycle is text you are asserting on the strength of a past self’s judgment, which is a weaker guarantee than it feels.
Assume the reader arrives late and generously assumes nothing. The documentation that survives audit is the documentation written for someone with no memory of context, reading years later, unwilling to fill in gaps.
The vindication
So the next time somebody dismisses grammar as decoration, mention that a tense ambiguity, repeated at national scale in documents nobody thought of as writing, produced one of the largest financial corrections in American healthcare history, complete with a 117.7 million dollar settlement in March and a federal audit workforce scaled to roughly two thousand reviewers.
The verb aspect is not decoration. It is the difference between a claim about the past and a claim about the present, and in some rooms that difference has a price.
