For UK private medical consultants
You're seeing the patients but not collecting what you're owed
Missed codes, insurer underpayments, and unreconciled follow-ups quietly erode revenue. For most private consultants, the gap can run to a meaningful share of net income every year, and it compounds because no one flags it.
Cost of Inaction
Answer a few quick questions and see what your current billing gaps are likely costing you annually.
How it breaks down
- Missed & unsent invoices (40%)£11,280
- Undercoding & missed items (35%)£9,870
- Short / unreconciled payments (25%)£7,050
What's recoverable
A structured billing audit typically recovers £16,920 – £22,560 of this leakage in the first year.
Cumulative loss if nothing changes
Two minutes, no typing, and I read every one myself.

From Paul
Tell me where that £28,200 is coming from, and I'll come back with the three things to fix first.
A few quick questions, about two minutes, and no typing. I read every one myself and reply with the three things costing you most and where I'd start. If it's useful, we talk. If not, you've still got a clear picture.
No obligation, no sales call unless you ask for one, and nothing automated lands in your inbox.
Paul, Solvable
- A consultant sees 8 patients in a clinic session but only bills for 6, missing two follow-up codes because the admin catch-up happens two weeks later.
- A clinic bills a standard consultation fee for an appointment that included a procedure, leaving the procedure code unbilled entirely.
- A hospital PMI contract has not been renegotiated in three years, meaning every insured admission is billed at rates 12–18% below current market.
- Revenue earned through clinical work is permanently lost unlike a denied claim, unbilled work cannot be recovered after time limits pass.
- Cash flow suffers as billing lags behind activity, creating a gap between cost and income.
- PMI relationships go unmanaged, with rates drifting below market while insurer profitability on your activity grows.
- Practice valuation is suppressed buyers and investors assess revenue based on what is billed, not what is delivered.
- Clinicians become demoralised when income does not reflect workload, without understanding why.
- Undercoding billing a lower complexity code than the clinical encounter justifies, often to avoid audit risk
- Missed ancillary charges consumables, follow-up calls, reports and admin services delivered but never invoiced.
- Outdated fee schedules PMI rates not renegotiated, meaning work is billed below current market rates.
- No reconciliation process, invoices raised but never matched against remittances to catch underpayments.
- Over-reliance on memory, charge capture done mentally rather than systematically, with gaps accumulating unnoticed
Providers without a revenue integrity programme lose 3–8% of net collectible revenue to undercoding, missed charges, and unrecovered denials, with initial denial rates at 11.8% in 2024 and payer audits rising 30% year-on-year in 2025. Studies estimate that 3–5% of hospital revenue is lost due to charge capture failures alone. Typically 3–7% of charges are missed entirely, resulting in unrecoverable revenue when no claim is ever generated. Healthcode processed 11.8 million PMI invoices in 2025, generating £7.5 billion for the UK private sector making accurate capture of every billable item a material financial issue at scale. Non-hospital private providers increased invoice volumes by an average of 8% in Q4 2025, meaning activity is growing faster than billing infrastructure in many independent practices.
Source: NAHRI / Medical Billers and Coders Revenue Integrity Guide 2025 · Healthcode Q4 2025 Invoice Analysis · Zotec Partners Charge Capture Report 2025 · HFMA Revenue Integrity Research
How to fix it
Conduct a billing audit across the last 12 months of activity, comparing procedures delivered against invoices raised most practices discover immediate, recoverable gaps on the first review. Implement a structured charge capture process that flags billable items at the point of clinical documentation, not retrospectively at month end. Negotiate and renegotiate PMI fee schedules annually organisations with dedicated revenue integrity processes report a 68% improvement in net collection rates, a result that is achievable even in smaller practices with the right support
Frequently asked questions
Why does this problem persist?
Billing is treated as an administrative afterthought clinicians focus on care and assume the invoicing takes care of itself, when in practice undercoding and missed charges accumulate quietly with no single moment of failure to trigger a review. Providers often focus only on denied claims, even though underpayments and missed charges can result in equal or higher revenue loss, meaning the real leakage never gets investigated. PMI insurer rules, procedure codes, and fee schedules are complex and change regularly, making it easy for busy practices to bill at outdated rates or miss billable add-on items without realising it.
What is the cost of leaving it unaddressed?
A practice billing £300,000 annually losing 5% to undercoding and missed charges is leaving £15,000 on the table every year with no marketing spend, no new patients, and no operational change required to recover it. At 8% leakage, that rises to £24,000. The revenue is already being earned; it simply is not being collected.
This is exactly what I do with UK private practices. Answer the few questions above and I'll come back personally with where to start. Paul.