coding_cpt_generation produces the final CPT charges and coding suggestions for a visit. It is part of the Nanonets Coding Engine tool group.
The CPT system prompt (payer-specific CPT rules, E/M MDM and time rules, psychotherapy rules, Spravato Buy & Bill handling, telehealth modifier rules, PA/chart-alert directives, and CCI/NCCI compliance instructions, ported from Fleming BuildSystemPrompt) is baked into the tool. Organization/user coding rules are appended at runtime.
Inputs
current_documentation(required): the encounter documentation to code. May wrap the target encounter in<current_encounter>tags.encounter_metadata(optional): appointment type, facility, provider, insurance order, etc.diagnosis_output(optional): the ICD-10 codes (in claim order) from the diagnosis step.chart_alert_directives(optional): chart-alert / prior-authorization directives.insurance_context(optional): active/inactive and primary/secondary/tertiary insurance details and PA context.nearby_encounter_context(optional): same-patient nearby encounters (same-day, modifier 25, treatment series).coding_rules(optional): organization/user coding rules appended after the baked rule set.
Output
Human-readable text
In the task feed the tool renders a## CPT Generation charges table (CPT, diagnosis, modifiers, POS, TOS, units, fee, note) and a ## Coding Suggestions table. The full result struct stays in structuredContent.
Note on the prompt source
The CPT system prompt is ported verbatim from FlemingBuildSystemPrompt (up to the rule-insertion point). The CPT user prompt is an assign-authored template with labeled slots (the verbatim body in the workflow doc’s reference section is an ICD-filter prompt and does not match the CPT-generation behavior, so it is not used here).
Notes
- LLM tool. Billed per call.
default_enabledis false.