CPC STUDY COURSE · 2026 EDITION
Adding lengths only after grouping
Read an original fictional chart, identify the supported facts, and explain your coding workflow.
Chart gym · Original fictional record
Service date: 2026-09-09 · WPS Medicare wound-repair documentation exercise
Use your code books and write your reasoning before opening the walkthrough. This exercise contains no real patient information.
Encounter
A fictional adult has three documented wound repairs during one visit. Each wound has a separate location label and closure description. This exercise stipulates that the repairs are otherwise separately reportable; it focuses on grouping and arithmetic rather than the indication for surgery.
First two repairs
The first repair measures 2.4 cm and the second 1.6 cm. Review of the current authorized definitions has confirmed that both belong to the same complexity and anatomical group. Their lengths are documented in centimeters, not estimated from the original injury size.
Third repair
The third repair measures 1.2 cm and belongs to a different anatomical group under the applicable entry. It does not qualify for addition to the first two in this exercise. Its own technique and length remain available for a separate lookup.
Worksheet proposal
One draft adds all three lengths into 5.2 cm. Another uses only the longest repair from the first group. Neither preserves the supplied grouping rule. The learner must show the correct group totals and then use the current length intervals.
Your coding worksheet
- Build the groups before adding.
- Calculate the first group total.
- Keep the third repair in its own group.
- Explain why neither 5.2 cm nor only 2.4 cm is the first group’s length.
In your notebook, record the supported facts, your index route, the instructions you checked, and any missing detail that limits your answer.
Compare with the worked explanation
- The first two share the stipulated complexity and anatomical group; the third does not.
- The first group totals 2.4+1.6=4.0 cm.
- The different group retains its 1.2 cm repair.
- 5.2 cm combines incompatible groups, while 2.4 cm drops a repair from the permitted group. Complete each group’s licensed-entry lookup separately.
Reference sections: Associated Information: Documentation Requirements
Practice the linked chart questions
Review the lesson
Sources
- WPS Medicare / CMS Medicare Coverage Database — LCD L35498: Removal of Benign Skin Lesions. Revision effective October 30, 2025; currently in effect. Accessed 2026-09-10.