## FhirPathAtom class [​](/content/docs/sdk/core.fhirpathatom#fhirpathatom-class "Direct link to FhirPathAtom class"/index.html)

**Signature:**

```typescript
export declare class FhirPathAtom implements Atom
```

**Implements:** [Atom](/content/docs/sdk/core.atom)

## Constructors [​](/content/docs/sdk/core.fhirpathatom#constructors "Direct link to Constructors"/index.html)

| Constructor | Modifiers | Description |
| --- | --- | --- |
| [(constructor)(original, child)](/content/docs/sdk/core.fhirpathatom._constructor_/index.html) |  | Constructs a new instance of the `FhirPathAtom` class |

## Properties [​](/content/docs/sdk/core.fhirpathatom#properties "Direct link to Properties"/index.html)

| Property | Modifiers | Type | Description |
| --- | --- | --- | --- |
| [child](/content/docs/sdk/core.fhirpathatom.child) | `readonly` | [Atom](/content/docs/sdk/core.atom) |  |
| [original](/content/docs/sdk/core.fhirpathatom.original) | `readonly` | string |  |

## Methods [​](/content/docs/sdk/core.fhirpathatom#methods "Direct link to Methods"/index.html)

| Method | Modifiers | Description |
| --- | --- | --- |
| [eval(context, input)](/content/docs/sdk/core.fhirpathatom.eval) |  |  |
| [toString()](/content/docs/sdk/core.fhirpathatom.tostring) |  |  |