> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ndumed.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Configure hospital settings, branding and numbering

> Set your hospital's timezone, currency, logo and colours in NduMed, and customise the MRN format and invoice number prefix from the Settings page.

Administrators configure hospital-wide options from **Settings**, pinned at the bottom of the menu.

## General

| Setting | Notes |
| - | - |
| **Timezone** | An IANA timezone such as `Africa/Lagos`. Used for "today", day boundaries and nightly bed-day charges. |
| **Currency** | A three-letter ISO code such as `NGN`. |
| **Locale** | Stored for future use. It does not yet change formatting or language; NduMed is in English. |

## Branding

* **Primary colour** and **Accent colour**: six-digit hex codes, for example `#0F766E`.
* **Logo**: PNG, JPEG or WebP, up to 256 KB and 1024 x 1024 pixels. It replaces the NduMed mark at the top of the menu. Use **Remove logo** to go back to the default.

## MRN format

Controls how new medical record numbers look. The default produces numbers like `MRN-2026-000001`.

* **Prefix**: 1 to 8 capital letters or digits.
* **Pattern**: must contain `{prefix}`, `{year}` and `{sequence}`.
* **Sequence width**: number of digits, 1 to 18.

Changes apply to patients registered from then on; existing MRNs do not change.

## Invoice numbering

**Invoice prefix**: 1 to 8 letters, digits or hyphens (default `INV-`). Invoice numbers are the prefix plus a 6-digit sequence with no gaps.

## Settings not on this page

> [!NOTE]
>
> The billing tax rate, the discount approval threshold, the role permissions and which modules your hospital uses are set by NduMed. Contact [NduMed support](https://docs.ndumed.co/help/contact-support.md) to change them.


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