A few years ago, observing the broken boundary wall led me to write about the modern management principle of Therbligs—the fundamental units of physical motion designed to eliminate friction and wasted effort. The premise was simple: when a system fails to standardize basic units of work, confusion and inefficiency inevitably fill the vacuum.

I was reminded of this principle recently while holding a laboratory test requisition form at a children’s hospital in Chennai.

Instead of the usual hurried scribble on a prescription slip, the hospital handed over a structured, cataloged sheet. Across multiple columns, tests were neatly indexed with dedicated checkboxes, sample requirements (serum, EDTA blood, urine), and unique 5-digit test codes.

Looking at that neat grid caught my eye immediately. It showed me that confusing test orders aren’t just an unavoidable part of healthcare—they are a simple design problem with a straightforward fix.

The Prescription Pad Gamble

In most clinics and outpatient consultations, lab investigations are still handwritten on general prescription pads. We have all joked about doctors’ illegible handwriting, but in diagnostics, poor legibility carries real risks and real operational hazards:

• Diagnostic Ambiguity: A handwritten note for a chest X-ray often omits critical orientation details (e.g., whether the radiologist requires an anterior-posterior, lateral, or oblique view).
• Transcription Errors: When tests have similar-sounding names or slightly different panels, staff at billing desks or blood collection counters can easily mix them up. This often leads to taking blood in the wrong sample tube or giving patients the wrong fasting instructions.
• Wasted Motion: When technicians cannot decipher a doctor’s handwriting, the workflow halts. The patient is shuttled back, phone calls are made, or an educated guess is taken—a needless loop of friction for an anxious family.

Pre-printed requisition sheets eliminate this guesswork. A checkbox next to an indexed entry—such as a Complete Blood Count or a specific liver enzyme panel—leaves zero room for misinterpretation. The lab technician collecting the blood immediately knows the exact test, the right sample bottle to use, and how to handle it.

Yet, there is a fundamental limitation with these forms today: they are entirely proprietary.

The Friction of Hospital-Specific Codes

In that particular hospital, an ALT (SGPT) test might be cataloged under code 50399. Walk across the street to another diagnostic laboratory or multi-specialty hospital, and that number is completely meaningless. The next provider either uses an entirely different internal numbering scheme or reverts to an unstandardized paper slip.

When every healthcare institution invents its own proprietary catalog, patients shoulder the systemic burden:

1. Portability Breaks: If a specialist at a tertiary hospital recommends a panel of tests, but the patient chooses to get them done at a trusted neighborhood laboratory closer to home, the requisition sheet loses its systematic value. The local lab must manually decipher, translate, and re-enter each investigation into their own internal software.
2. Health Records Fragment: Tracking longitudinal health trends across different clinics becomes a tedious chore of reconciling non-standardized reports and differing panel names.

The Four-Step Roadmap: How the Ministry Can Build the Standard

Creating a national diagnostic taxonomy does not require reinvention from scratch; it requires crowdsourcing and central curation.

The Ministry of Health and Family Welfare (MoHFW), Government of India, working in tandem with state health departments and leading public and private hospital chains, can roll this out through a straightforward framework:

1. Collate the Ground Truth Across States: The Ministry can issue a directive requesting sample requisition forms and diagnostic master catalogs from government medical colleges, private hospital chains, and standalone lab networks across the country. Even if collating these uncovers over 500 distinct clinical tests, compiling them side by side will immediately expose overlapping nomenclature and common test groupings.
2. Publish an Open National Diagnostic Code Master: A clinical expert committee can rationalize the master list into a single, standardized directory—assigning a universal test code, official standardized name, specimen parameter, and baseline methodology to each investigation. This master index can be published directly on the MoHFW portal as an open, freely accessible data dictionary.
3. Distribute Standardized, Reusable Print Templates: To drive adoption across smaller clinics, nursing homes, and standalone labs with limited IT budgets, the Ministry can design standard, modular printable templates (organized logically by Biochemistry, Hematology, and Clinical Pathology). The core body of the form—complete with checkboxes, national test codes, and specimen parameters—remains strictly standardized. Healthcare facilities can simply download the official template, add their own hospital logo and patient registration details to the top header, and put it to work immediately.
4. Incentivize Compliance via Accreditation: Adopting these standard codes can be integrated into existing quality benchmarks, such as NABH accreditation standards and digital integration milestones under the Ayushman Bharat Digital Mission (ABDM).

Democratizing Price Discovery

Standardizing diagnostic nomenclature solves clinical ambiguity, but its broader economic impact is even more significant: it democratizes cost transparency.

In consumer retail, universal barcodes (UPCs and EANs) enable consumers to instantly check and compare product prices across different sellers. In healthcare, comparing diagnostic costs is nearly impossible. If you try to compare the cost of a “Thyroid Profile” or a “Kidney Function Test” across three private hospitals, you are rarely comparing identical offerings. One facility bundles specific electrolytes while another bills them separately as an add-on.

Anchoring every diagnostic investigation to a universal national code allows:

• Patients to search an investigation code and view real-time price distributions across nearby accredited facilities.
• Discrepancies in markup between neighborhood labs and corporate hospitals to become transparent.
• Market forces and informed patient choices to naturally check arbitrary pricing for routine, high-volume blood work.

National Momentum: The Missing Engine for India’s Insurance Reforms

This is not merely an operational or design theory; it is at the very core of India’s current health policy debate.

According to investigative reporting by Reuters and the Economic Times, a high-level committee appointed by the Insurance Regulatory and Development Authority of India (IRDAI) alongside hospital industry bodies is actively weighing sweeping reforms to curb medical inflation in India, which currently runs at an unsustainable 12% to 14% annually.

At the center of these proposed reforms are two critical interventions:

1. Benchmarking Treatment Rates: Establishing standardized tariffs for medical procedures to rein in wide pricing disparities between private providers.
2. Curbing Disputed and Inflated Claims: Eliminating billing discrepancies and unnecessary claims, which currently account for an estimated 10% to 15% of all submitted insurance claims.

Yet, there is a fundamental implementation bottleneck that policymakers cannot afford to ignore: you cannot benchmark what you have not standardized.

If one hospital bundles nursing care, monitors, and basic disposables into its room charges while an adjacent facility bills them as five separate ancillary items, any attempt at capping rates or auditing claims triggers friction, disputes, and delayed approvals. Standardizing clinical test codes and inpatient billing line items provides the prerequisite data grammar that IRDAI, the National Health Authority (NHA), and the National Health Claims Exchange (NHCX) need to actually make these reforms work.

The Next Frontier: Standardizing the Inpatient Hospital Bill

The diagnostic requisition slip is only one visible symptom of a broader issue. The exact same ambiguity plagues inpatient hospital billing.

Anyone who has settled an inpatient hospital bill—or navigated a health insurance reimbursement claim—knows the bewilderment of reading the final summary:

• Nursing Charges – Level 2
• Consumables & Tray Setup
• Procedure Assist / OT Overhead
• Ward Service Fee

No two healthcare institutions categorize, bundle, or name these expenses identically. A daily bed charge in one hospital might bundle basic nursing monitoring, while another itemizes it into three separate ancillary charges. Because hospitals use divergent, proprietary billing dictionaries, claims processing is bogged down by manual audits, arbitrary deduction of “non-payable items,” and hours of discharge delay.

Standardizing hospital billing software with a unified, mandatory catalog for room categories, procedural steps, equipment utilization, and consumable packs would transform healthcare administration:

• Instant Adjudication via NHCX: Today, claims processing is bogged down by manual audits, back-and-forth query letters, and arbitrary deductions for “non-payable items.” A standardized billing schema allows claims engines on the National Health Claims Exchange (NHCX) to execute rule-based auto-adjudication within minutes, ending lengthy discharge wait times for families.
• Elimination of Hidden Markups: Standardized codes make it immediately clear what a room or procedure package entails, preventing facilities from obscuring exorbitant markups behind ambiguous consumable heads.
• Auditable Benchmarks for Public Health: Regulators and state health departments can track median procedure and diagnostic costs across districts, curbing predatory price spikes and establishing realistic baselines for Ayushman Bharat and private group policies alike.

Standardization is not administrative bureaucracy; it is the fundamental infrastructure that makes scale, trust, and operational efficiency possible. Just as standardized shipping container dimensions transformed global logistics, standardizing medical taxonomy is essential for genuine digital health portability.

Eliminating handwriting ambiguity with a simple pre-printed checkbox is a great first step. The real milestone lies in building an interoperable public health framework where every test, every code, and every rupee is universally understood across the country.

Samples of Test Requisition Forms

Addendum: The “T-Shirt Sizing” of Hospital Rooms

In my earlier essay on Therbligs and modern management, I explored how standardizing room dimensions into intuitive “T-shirt sizes”—Small, Medium, Large, and Extra-Large—removes cognitive friction and guesswork in space planning.

That principle applies directly to inpatient hospital tariffs today.

In many private hospitals, a single day’s room rent has reached absurd heights, often matching the entire monthly rent of an apartment. Yet, what constitutes a “single private room” remains completely arbitrary. One hospital charges ₹8,000 for a cramped, windowless box barely wide enough for a stretcher, while another charges the same for an airy room with dedicated attendant seating. At the extreme end, daily tariffs can climb to ₹25,000 or more—higher than a night at a luxury five-star hotel.

If regulators can define a baseline physical standard for single-occupancy rooms—for instance, a standard dimension of roughly 10 ft × 16 ft (around 160 sq. ft. of usable carpet area, including an attached washroom) to comfortably accommodate one patient bed, an attendant cot, a bedside locker/cupboard, a visitor chair, and walking clearance for medical staff—we establish an objective baseline.

Once the physical unit is standardized, patients can make true apples-to-apples price comparisons across different hospitals. It eliminates hidden markups disguised as “deluxe” categories, curbs arbitrary room inflation, and restores basic price transparency to the single most expensive line item on an inpatient bill.

References:
How a broken wall led me explore the modern management principle, Therblig?
India plans insurance reforms to rein in healthcare costs – The Economic Times

*This post has been refined using Gemini.