An interpretation before the first office visit

Read an original fictional chart, identify the supported facts, and explain your coding workflow.

Chart gym · Original fictional record

Service date: 2026-09-09 · Medicare office professional service

Use your code books and write your reasoning before opening the walkthrough. This exercise contains no real patient information.

Synthetic encounter and reporting party

Fictional patient: Julian Mercer, age 68. Date: September 9, 2026. Dr. Evan Liu, cardiology, conducts a first face-to-face office visit under Original Medicare. Patient and practitioner details are invented.

Referral and symptom history

The referring practice requests evaluation of intermittent palpitations. Julian describes brief episodes during the previous month, without syncope, current chest pain or persistent shortness of breath. The referral lists palpitations, not a confirmed rhythm disorder. The available excerpt does not establish an arrhythmia diagnosis.

Earlier professional claim

On November 18, 2025, Dr. Liu interpreted an ECG tracing sent electronically by another practice. Dr. Liu did not see the patient or provide an E/M or other face-to-face service then. The practice confirms that no other qualifying professional service occurred with this physician or another cardiologist in this group during the preceding three years.

Today’s documented work

Dr. Liu reviews the symptom history and referral, performs an examination and discusses further evaluation. Blood pressure is 132/78 and pulse is 76 and regular at the visit. The patient is not experiencing an episode during the examination. The physician does not describe the earlier interpretation as a prior office visit.

Assessment and plan

The assessment remains palpitations. The physician plans ambulatory rhythm evaluation and follow-up to review the results. No definitive rhythm disorder is documented in this record. The current claim concerns the professional office evaluation; the older ECG interpretation was a separate historical service.

Abstraction boundary

Determine the service family and new/established status from the verified history. The excerpt does not provide every data/risk fact or an eligible time total for a final E/M level. Do not infer a rhythm diagnosis from a normal examination or from the plan for monitoring.

Your coding worksheet

Distinguish the earlier interpretation from a qualifying prior face-to-face service.
Determine patient status under the cited Medicare instruction.
Identify the currently supported symptom.
List the remaining evidence needed for final E/M selection.

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

A prior claim exists, but its service type matters.
The interpretation-only history does not make this patient established under the stated Medicare exception; there are no other qualifying services.
Palpitations are documented, while a definitive arrhythmia is not supplied.
Choose the current family and status, then complete MDM or eligible time review before selecting the final entry.

Reference sections: CMS Claims Processing Manual 12, 30.6.7.A; ICD-10-CM Guidelines IV.H for the symptom-only diagnosis boundary

Practice the linked chart questions