| Course | HI255 Medical Coding II |
|---|---|
| Unit | Unit 9 |
| Paper type | Seminar reflection |
| Length | About 830 words, 6 pages double-spaced |
| Format | APA 7 student paper |
| School | Purdue University Global |
| Program | BS in Health Information Management |
| Updated | October 2026 |
Free sample paper for HI255 Unit 9
Every Edit Said Yes: A Unit 9 Seminar Reflection on a Left Knee Replacement Coded to the Right Knee Joint, Why No Software Flagged It and What I Now Read Before Trusting a Clean Edit Report
[Student Name]
Purdue University Global
HI255: Medical Coding II
Unit 9 Seminar Reflection
[Instructor Name]
[Date]
The claim and the seminar case are composite; the code values, guidelines and sources cited are real and follow the FY 2026 ICD-10-CM and ICD-10-PCS.
What I Believed Going In
I came into the seminar thinking that a claim which cleared the code editor and grouped without a warning had been checked. That belief was not careless. Edits catch real errors every day: a code that does not exist, a diagnosis that cannot apply to a patient of that age or sex, a procedure that cannot group with the principal diagnosis. In my practice coding for this course, a clean edit report had become the moment I stopped looking. I treated it as a second reviewer who had read the case with me.
The Case
The instructor gave us a composite claim. The operative report described a left total knee replacement with a cemented prosthesis for primary osteoarthritis. The diagnosis on the claim was M17.12, unilateral primary osteoarthritis of the left knee, which was correct. The procedure was 0SRC0J9, which places a cemented synthetic joint in the right knee through an open approach. The correct code was 0SRD0J9, where the fourth character D names the left knee joint. The instructor showed us that the claim had passed every edit in the practice software and had grouped to the expected major joint replacement payment group. The claim was valid in every character any software checks, and it described an operation on a knee that no surgeon touched.
What the Seminar Established
For several minutes no one saw the problem. We checked the root operation, the device, the qualifier for cement and the approach, and all of them were right. Then a classmate read the diagnosis and the procedure aloud one after the other and said that one said left and the other said right. The room went quiet, mostly because most of us had looked at both codes and missed it. The instructor then walked us through what the edits are built to test. Code editors confirm that a code is valid for the fiscal year, that it fits the patient's age and sex where that matters, and that the diagnosis and procedure can group together. None of them reads the operative report. None of them compares the side named in a diagnosis with the side named in a procedure body part, because there are legitimate cases where the two differ, such as a graft taken from one leg for a procedure on the other. Grouping did not change either, since a right and a left knee replacement pay the same. The error was invisible to every automated step and fully visible to a person reading the record. Studies of wrong-site events in surgery itself describe the same pattern: errors of side survive check after check because each check assumes someone else confirmed it (Seiden & Barach, 2006).
What I Had Been Doing
I have to admit that my own process would have passed this claim. I read the operative report to choose the root operation and the device, and I checked the body part for the joint, but I took the side from memory once I had seen it in the first paragraph. Then I relied on the editor to tell me if anything was wrong. The edit report had become a finish line, and I had stopped reading at it. The ICD-10-PCS guidelines expect each character to be supported by the documentation (Centers for Medicare & Medicaid Services, 2025), and laterality is a character like any other.
What I Will Do Now
My new habit is simple. After every clean edit report, I read the body part and laterality characters of each procedure against the operative report and against the diagnosis, and I say both sides out loud the way my classmate did. Where they differ, I look for the reason in the record before I accept it. I am applying the same check to the device and approach characters, which edits also cannot test against a report. A device value for cemented when the report says press fit would pass every edit, and so would an open approach for an arthroscopic case. Coding accuracy studies keep finding that errors of detail, not errors of category, make up much of what reviewers change (O'Malley et al., 2005). I also plan to ask my future supervisor whether the department samples clean claims for review, since an audit that only looks at flagged claims would never find this kind of error. I now think of a clean edit report as the start of my own review rather than its end.
References
Centers for Medicare & Medicaid Services. (2025). ICD-10-PCS official guidelines for coding and reporting 2026. U.S. Department of Health and Human Services.
O'Malley, K. J., Cook, K. F., Price, M. D., Wildes, K. R., Hurdle, J. F., & Ashton, C. M. (2005). Measuring diagnoses: ICD code accuracy. Health Services Research, 40(5p2), 1620-1639. https://doi.org/10.1111/j.1475-6773.2005.00444.x
Seiden, S. C., & Barach, P. (2006). Wrong-side/wrong-site, wrong-procedure, and wrong-patient adverse events: Are they preventable? Archives of Surgery, 141(9), 931-939. https://doi.org/10.1001/archsurg.141.9.931
What the HI255 Unit 9 assignment asks for
The ninth unit often runs as a live seminar on a coding case followed by a written reflection. The prompt usually asks what you believed before the discussion, what in the seminar pushed against that belief and which habit you will change. Some sections supply a reflective model and want its stages as headings. You are expected to use specific details from the case, kept composite, and to cite at least the coding guidelines that apply. Students who could not attend usually complete a written option on the same case. One to two pages is common. Retelling the seminar with no personal starting point misses the purpose of the unit, as does one that ends with a vague promise to be careful.
Inside the HI255 Unit 9 example
The reflection opens with the writer's belief stated at its strongest, including the real errors edits do catch. The case section gives the operative facts, both codes and the correct code, followed by a highlighted line that the claim was valid in every checked character and wrong about the knee. The seminar section describes the room missing the error until a classmate read the codes aloud, then explains what edits test and why laterality is not compared across codes. A source on wrong-site events supports the point that checks fail when each assumes another has looked. The writer then admits taking the side from memory and stopping at the edit report. The closing section sets out the new habit, extends it to device and approach characters, and proposes sampling clean claims.
Reading the HI255 Unit 9 grading rubric
Reflections are usually graded on honesty, application and change. The first block rewards a clear starting belief and an account of how the seminar challenged it, so a reflection that begins already knowing the answer loses points. Application is next: graders want the coding concept named precisely, here the body part and laterality characters, and tied to the case. The forward-looking section is weighted well when it describes a specific, repeatable step rather than a resolution to be careful. Some rubrics award credit for extending the lesson to related errors. Citation of the PCS guidelines and at least one other source, organization under the expected headings and clean writing make up the remainder. Personal tone is expected, and first person is usually required rather than tolerated.
Common HI255 Unit 9 mistakes, and how to avoid them
The most common weakness is a reflection with no real before, written as if the writer always knew edits could miss errors. A second is describing the software in vague terms instead of naming what it checks. Some students blame the coder in the case rather than examining their own habits, which turns a reflection into a critique. Others close with a plan that promises more attention without saying what will be read and when. Missing citations and forgetting to keep the case composite also cost points. If your seminar focused on a different error, our team can write the reflection around that case in your instructor's model. Send the case summary, what you thought beforehand and the comments in the seminar that changed your view.
Get an HI255 Unit 9 example written to your instructions
The reflection starts from your own seminar case: attach the slides, the reading or a short description of the claim discussed in Unit 9, with the prompt and rubric, and note whether your section used the written alternative. Guideline references are included, delivery is 24-48h, and nothing is billed for the first custom sample. The paper above is an original model document written by our desk, not a submitted student paper and not an official Purdue University Global document.
More HI255 papers and BS in Health Information Management samples
- HI255 Unit 1: Discussion Post
- HI255 Unit 2: Operative Report Analysis
- HI255 Unit 3: Root Operation Exercise
- HI255 Unit 4: Approach and Device Drill
- HI255 Unit 5: Procedure Coding Set
- HI255 Unit 6: Modifier Justification
- HI255 Unit 7: Bundling Review
- HI255 Unit 8: Evaluation and Management Case
- HI255 Unit 10: Surgical Case Portfolio
- HI253 Unit 9: Coding Accuracy Review
- HI230 Unit 9: Statistical Display
- HI215 Unit 9: Seminar Reflection
- HI150 Unit 9: User Access Review
HI255 Unit 9 questions, answered
Why would a diagnosis and procedure on different sides not be flagged?
Many claim edits check each code for validity and check combinations against age, sex and grouping rules. They are generally not built to compare the laterality of a diagnosis with the laterality of a procedure, and they never see the operative report. A mismatch like the one in this seminar is caught by a person reading the record, which is the point the reflection makes.
Does the reflection need to cite sources?
Many Unit 9 prompts ask for at least the course text or the coding guidelines, and citing the relevant body part guideline strengthens the argument. A reflection is not a research paper, so a short list is usually enough. Check your instructions, since some sections grade reflections on content alone while others expect formatted references.
What if my seminar discussed a different edit problem?
The same structure applies to any case where a code was valid and wrong at once: a device character left empty, an approach coded Open for an endoscopic procedure, or a discontinued procedure coded as completed. The sample would be written around the case your seminar used, keeping the assumption, the evidence and the changed practice in the same order.
Where can I find a free HI255 Unit 9 sample paper?
This page has the full Unit 9 seminar reflection on a left knee replacement coded to the right knee joint, a claim that passed every edit, and the habit it changed.
What is the correct ICD-10-PCS body part for a left knee replacement?
The left knee joint, value D, as in 0SRD0J9 for a cemented synthetic replacement through an open approach. Value C is the right knee joint.