---
title: "SQL-125: Retrieve CbpDiagnosis via GetBillDiagnosis"
summary: Read operation against CbpDiagnosis via NHibernate ORM.
status: draft
owner: SAIF Doc Gen
last_reviewed: 2026-09-24
library: SAIF.Services
reference_type: package
---

# SQL-125: Retrieve CbpDiagnosis via GetBillDiagnosis

This ORM statement performs a read operation on `CbpDiagnosis` via `IUnitOfWork.GetRepository<T>()`, executed from `Services/SAIF.Services/Claims/Bills/BillService.cs (L359)`.

## Classification

| Field | Value |
| --- | --- |
| **SQL ID** | SQL-125 |
| **Operation type** | Read |
| **Execution method** | ORM (NHibernate LINQ) |
| **Database** | Oracle |
| **Schema** | [unqualified]** |
| **Command type** | N/A (ORM-generated) |
| **Business object** | `CbpDiagnosis` |
| **Criteria property** | N/A — ORM |
| **Lifecycle method** | `GetBillDiagnosis` |

## Parameters

| Parameter | Direction | Type | Max length | Description |
| --- | --- | --- | --- | --- |
| `x.DiagnosisCode` | Input | ** | N/A | `y.DiagnosisCode == x.DiagnosisCode` → column DIAGNOSIS_CODE |

## Tables

| Table | Access | Columns used |
| --- | --- | --- |
| [CBP_DIAGNOSIS](../database-tables.md#cbp_diagnosis) | SELECT | `DIAGNOSIS_CODE`, `UPDATE_NUM`, `ICD_VERSION_CODE`, `DIAGNOSIS_DESCR`, `DIAGNOSIS_SHORT_DESCR`, `DIAGNOSIS_CATEGORY_CODE`, `VALID_MEDICARE_REPORT_FLAG`, `EFF_DATE`, `EXP_DATE`, `UPDATE_USER`, `UPDATE_DATE` |

## LINQ statement

Source: `Services/SAIF.Services/Claims/Bills/BillService.cs:357`

```csharp
// Services/SAIF.Services/Claims/Bills/BillService.cs:357-360
            t.ForEach(x =>
            {
                var obj = unitOfWork.GetRepository<CbpDiagnosis>().Query()
                        .SingleOrDefault(y => y.DiagnosisCode == x.DiagnosisCode);
```

## Sample SQL

> **Inferred SQL:** This SQL was inferred from the LINQ statement above and the NHibernate mappings. It is not concrete SQL from source code; NHibernate generates the executed statement at runtime, so aliases, column order, join syntax, and bind-parameter names may differ.

```sql
-- Inferred from LINQ (NHibernate mapping translation); not concrete SQL
-- Services/SAIF.Services/Claims/Bills/BillService.cs:359
SELECT
  CD.DIAGNOSIS_CODE,
  CD.UPDATE_NUM,
  CD.ICD_VERSION_CODE,
  CD.DIAGNOSIS_DESCR,
  CD.DIAGNOSIS_SHORT_DESCR,
  CD.DIAGNOSIS_CATEGORY_CODE,
  CD.VALID_MEDICARE_REPORT_FLAG,
  CD.EFF_DATE,
  CD.EXP_DATE,
  CD.UPDATE_USER,
  CD.UPDATE_DATE
FROM CBP_DIAGNOSIS CD
WHERE CD.DIAGNOSIS_CODE = :DiagnosisCode
-- NHibernate expects at most one row
```

Translation notes:
- Executed once per element inside `t.ForEach(...)` (L357) - N+1 pattern; `x.DiagnosisCode` is a member of the in-memory contract object -> bind `:DiagnosisCode`.

## Operations and processes
- BillService.GetBillDiagnosis — see [Operations and processes](../operations-processes.md)

## Sources
- `Services/SAIF.Services/Claims/Bills/BillService.cs (L359)`