Quick answer
What is business messaging for Healthcare?
Healthcare messaging lets hospitals, clinics, diagnostic labs and pharmacies confirm appointments, send reminders, share report-ready alerts and follow up with patients over SMS, WhatsApp and voice. Messages should confirm and link, never reveal diagnoses, because health data is sensitive personal data.
Last updated: 21 October 2026
Hospitals, clinics, diagnostic labs and pharmacies use messaging to cut no-shows, share reports quickly and keep patients on their treatment plans. Because health data is sensitive, messages should confirm rather than reveal.
Key facts
- ✓Appointment confirmations and reminders are service implicit messages under DLT and reach DND numbers.
- ✓The Digital Personal Data Protection Act, 2023 applies to patient data processed digitally, including phone numbers and appointment details.
- ✓India's Telemedicine Practice Guidelines (2020) allow consultations over text, audio and video, including WhatsApp.
- ✓Voice reminders can be recorded in any language, which helps reach patients who don't read SMS.
- ✓Report links protected by an OTP keep results off lock screens.
The Healthcare messaging journey
- 1
Booking
Confirm appointments with date, time, doctor and location.
- 2
Reminders
Remind patients a day before and a few hours before, with an option to reschedule.
- 3
Reports
Tell patients their lab report is ready, with a secure link instead of results in the message.
- 4
Follow-up
Send medication and follow-up visit reminders, by voice for patients who don't read texts.
Healthcare use cases by moment
| When | Message | Channel |
|---|---|---|
| Appointment booked | Confirmation with doctor, time and location | SMS + WhatsApp |
| Day before visit | Reminder with reschedule option | WhatsApp or SMS |
| Elderly patients | Reminder call in their language | Voice OBD |
| Lab report ready | Secure link, OTP-protected | SMS, WhatsApp |
| Follow-up due | Prompt to book the next visit | |
| Teleconsultation | Video link and doctor details |
Which channel for what
Sample message templates
Examples in DLT format, where each {#var#} is filled in when the message is sent. Register your own wording on DLT before sending; we review templates during onboarding.
- Dear {#var#}, your appointment with Dr {#var#} is confirmed for {#var#} at {#var#}. - {#var#} Hospital
- Reminder: your appointment is tomorrow at {#var#}. To reschedule, call {#var#}. - {#var#} Clinic
- Your lab report for booking {#var#} is ready. View it securely: {#var#} - {#var#} Diagnostics
- Time for your follow-up visit with Dr {#var#}. Book a slot: {#var#} - {#var#}
Compliance for Healthcare
- Never put test results, diagnoses or medicines in the message text; send a secure link instead.
- Under the DPDP Act, process only the data you need, keep it secure and let patients withdraw consent for non-essential messages.
- Health tips and offers on packages are promotional and need promotional templates or WhatsApp marketing opt-in.
Metrics to track
- No-show rate before and after reminders
- Reschedule rate from reminder messages
- Report link open rate
- Follow-up booking rate
- Patient reply rate on WhatsApp
How to get started
- 1
Share your use case
Tell us which messages you send, on which channels, and your monthly volume.
- 2
Register on DLT
We help you register your entity, headers and templates; WhatsApp and RCS senders are set up in parallel.
- 3
Test
Send test messages from the panel or with sandbox API keys.
- 4
Go live
Start sending and track every message with live delivery reports.
Healthcare FAQs
Should test results be sent in the message?
No. Send a notice that the report is ready with a secure, login- or OTP-protected link, so results aren't visible on a lock screen.
Do appointment reminders need customer consent?
Reminders about a booking the patient made are service implicit messages and don't need separate consent. Health tips or offers do.
How do we reach elderly patients?
Use voice reminder calls in the patient's language, with SMS as a backup.
How many reminders should a clinic send?
Usually two: one a day before and one a few hours before the appointment. More can feel intrusive.
Can a hospital use one WhatsApp number for all departments?
Yes. The WhatsApp Business API supports a shared inbox where chats can be routed to different departments.
Is patient consent needed for WhatsApp?
Yes. Meta requires opt-in before you message on WhatsApp, and the DPDP Act requires a clear purpose for using the patient's data.
Can pharmacies send refill reminders?
Yes, to customers who asked for them. Keep the message to the reminder and avoid naming the medicine where privacy matters.
Do voice calls work for rural patients?
Yes. Voice calls reach any phone, need no data connection and can be recorded in the local language.