Clinical Coding Specialist

Location: London, United Kingdom

Employment Type: Full time

Department: Growth

Who is Heidi?

Heidi is building an AI Care Partner that supports clinicians every step of the way, from documentation to delivery of care. We exist to double healthcare’s capacity while keeping care deeply human. In 18 months, Heidi has returned more than 18 million hours to clinicians and supported over 73 million patient visits. Today, more than two million patient visits each week are powered by Heidi across 116 countries and over 110 languages. Founded by clinicians, Heidi brings together clinicians, engineers, designers, scientists, creatives and mathematicians, working with a shared purpose: to strengthen the human connection at the heart of healthcare. Backed by nearly $100 million in total funding, Heidi is expanding across the USA, UK, Canada and Europe, partnering with major health systems including the NHS, Beth Israel Lahey Health, MaineGeneral and Monash Health, among others. We move quickly where it matters and stay grounded in what’s proven, shaping healthcare’s next era.

The Role

We’re looking for a Clinical Coding Specialist with deep expertise in NHS clinical coding to guide the development of Heidi’s AI scribe platform into compliant, accurate, structured medical documentation that supports NHS Trust requirements. You’ll be the clinical coding expert who ensures our AI systems understand and apply NHS coding standards correctly, working directly with our engineering team to embed your expertise into automated systems that support clinicians seamlessly. You’ll play a crucial role in defining coding accuracy standards, validation processes and compliance frameworks that power millions of patient encounters across NHS settings.

What you’ll do:

• Lead clinical coding validation for AI-generated documentation, ensuring accurate application of ICD-10, OPCS-4, SNOMED and specialty-specific coding across diverse NHS clinical scenarios.
• Develop coding guidelines and protocols that translate complex NHS coding standards and rules into systematic processes our AI can learn and apply consistently.
• Create and maintain high-quality labeled datasets for AI training, validating clinical coding annotations and establishing gold-standard references for model development and evaluation.
• Conduct quality audits of AI-coded documentation, identifying patterns, gaps and opportunities for improvement in coding accuracy and compliance with NHS standards.
• Collaborate with engineering teams to translate clinical coding expertise into technical requirements, validation rules and system improvements.
• Work directly with NHS clinicians to understand documentation patterns, clinical decision-making and coding challenges in acute, community and mental health settings.
• Ensure compliance with NHS Digital coding standards, National Clinical Coding Standards (NCCS) and Information Standards Notices.
• Support HRG (Healthcare Resource Group) validation and ensure accurate casemix data for Payment by Results (PbR) and tariff calculations.
• Analyze coding data and metrics to identify trends, accuracy patterns and areas for system optimization.
• Stay current with NHS coding updates including ICD-10, OPCS-4 and SNOMED updates, National Clinical Coding Standards changes and NHS Digital guidance.
• Support NHS Trust implementations by providing coding expertise during enterprise client onboarding and troubleshooting.

What we’ll look for:

• 5+ years of professional clinical coding experience in NHS Trusts or UK healthcare settings.
• Expert-level knowledge of ICD-10 (WHO version), OPCS-4 and UK clinical terminology across multiple specialties.
• Professional qualification as an Accredited Clinical Coder (ACC) or equivalent recognized by NHS Digital/Academy of Clinical Coders.
• Multi-specialty coding experience including inpatient, outpatient, A&E day case and specialty clinic coding.
• Strong understanding of Healthcare Resource Groups (HRGs), Payment by Results (PbR) and NHS tariff structures.
• Experience with clinical coding audits and quality assurance processes, including accuracy measurement aligned to NHS Digital standards.
• Familiarity with NHS EHR systems (e.g., Cerner Millennium EPIC System C Lorenzo Careflow) and clinical documentation workflows.
• Understanding of NHS data quality requirements, Commissioning Data Sets (CDS) and Hospital Episode Statistics (HES).
• Analytical skills with ability to identify coding patterns, trends and systematic issues.
• Communication skills to work effectively with clinical teams, engineers and NHS information managers.
• Adaptability to work in a fast-paced technology environment and translate traditional NHS coding processes into innovative AI-powered solutions.

What do we believe in?

Heidi builds for the future of healthcare, not just the next quarter, and our goals are ambitious because the world’s health demands it. We believe in progress built through precision, pace and ownership. Live Forever – Every release moves care forward: measured, safe and built to last. Data guides us, but patients define the truth that matters. Practice Ownership – Decisions follow logic and proof, not hierarchy. Exceptional care demands exceptional standards in our work, our thinking and our character. Small Cuts Heal Faster – Stability earns trust, speed delivers impact. Progress is about learning fast without breaking what people depend on. Make others better – Feedback is direct, kindness is constant and excellence lifts everyone. Our success is measured by collective growth, not individual output. Our mission is clear: expand the world’s capacity to care, and do it without losing the humanity that makes care worth delivering.

Why you should join Heidi

• Real product momentum. We’re not trying to generate interest, we’re channeling it. This is a rare chance to create a global impact as you immerse yourself in Australia’s fastest growing start-up.
• Equity from day one. When Heidi wins, you win. You’ll share directly in the success you help create.
• Unmatched impact. Play a pivotal role at a critical growth moment – all while working on a product that delivers tangible value to clinicians and patients every day.
• Work alongside world-class talent. Join a team of operators and builders who’ve scaled unicorns.
• Global reach. Help shape our international expansion as we bring Heidi to key international markets.
• Growth and balance. Enjoy a £500 personal development budget, dedicated wellness days, subsidised gym membership and your birthday off to recharge.
• Flexibility that works. A hybrid environment, with 3 days in the office.

Heidi’s commitment to Diversity, Equity and Inclusion

Heidi is dedicated to creating an equitable, inclusive and supportive work environment that brings people together from diverse backgrounds, experiences and perspectives. Our strength is in our differences. We’re proud to be an equal opportunity employer and are proud to welcome all applicants as we’re committed to promoting a culture of opportunity for all.