Clinical Documentation Expert - AI Trainer

Obsidian; Nashville (TN); Remote; USD 28,000 - 50,000; Part time

Job summary

Mercor is hiring certified medical coders to review, annotate, and evaluate clinical documentation and AI-generated notes for a healthcare AI partner. This multilingual cohort requires advanced proficiency in English plus at least one other language.

Remote, part-time role with a minimum of 10 hours per week; US-based candidates only. Active certification (CCDS/CHC/CCS/CPC) and ICD-10 coding experience are required, along with current work in medical coding or related fields.

Qualifications

• Active certification — CCDS, CHC, CCS, or CPC.
• ICD-10 coding experience.
• Currently working in medical coding, clinical documentation improvement, or a closely related role.
• US-based work location.
• Advanced (C1+) proficiency in at least one other language besides English.
• Availability of at least 10 hours per week.

Responsibilities

• Document and code review for accuracy, completeness, and coding integrity.
• Evaluate AI-generated clinical notes against real-world documentation and coding standards.
• Validate alignment between clinical documentation and codes.
• Annotate documentation against guidelines and identify omissions and gaps in AI outputs.
• Provide structured, written feedback for engineering and product teams.
• Contribute to guidelines and clarify requirements where needed.

Skills

Active certification

ICD-10 coding experience

US-based

Advanced language proficiency

Availability 10 hours/week

Tools

Epic

Job description

About the Role

Mercor is hiring certified medical coders on behalf of a healthcare AI partner building advanced clinical documentation tools. In this role you will apply your coding and documentation expertise to review, annotate, and evaluate clinical documentation and AI-generated clinical notes, directly shaping the accuracy and reliability of medical AI systems.

This role is part of a multilingual annotation cohort. In addition to English, you should be able to speak, read, and write at least one other language at an advanced (C1 or above) level.

Key Responsibilities

Documentation & Coding Review

• Review clinical documentation for accuracy, completeness, and coding integrity

• Evaluate AI-generated clinical notes and summaries against real-world documentation and coding standards

• Validate alignment between clinical documentation and assigned codes

Annotation & Structured Feedback

• Annotate clinical documentation against detailed guidelines

• Flag omissions, inaccuracies, and documentation gaps in AI-generated output

• Provide structured, written feedback that engineering and product teams can act on

Knowledge Contribution

• Contribute expert input on annotation guidelines and documentation standards

• Raise clarifying questions where guidance is ambiguous and help refine the guidelines

Required Qualifications

• Active certification — at least one of CCDS, CHC, CCS, or CPC

• ICD-10 coding experience

• Currently working in medical coding, clinical documentation improvement, or a closely related documentation role

• US-based

• In addition to English, advanced (C1+) proficiency — speaking, listening, and writing — in at least one other language

• Availability of at least 10 hours per week

Preferred Qualifications

• Additional certifications (CRC, CDIP, or similar)

• Familiarity with Epic

• Experience with HCC or risk-adjustment coding

• Prior AI/ML annotation or model evaluation work experience, with strong performance reviews

Work Arrangement

• Remote, part-time — minimum 10 hours/week

• Flexible scheduling