Crystal's MCW Coder HubTags: icd10 inpatient diagnosis
Overview
Inpatient coding requires high specificity. Principal diagnosis drives DRG assignment for facility billing.
Principal Diagnosis
Definition
The condition established after study to be chiefly responsible for the admission.
Secondary Diagnoses
- Comorbidities
- Complications
- Chronic conditions affecting care
Common Inpatient Categories
Circulatory (I00-I99)
| Code | Description |
|---|---|
| I50.9 | Heart failure, unspecified |
| I21.4 | NSTEMI |
| I63.9 | Cerebral infarction |
| I26.99 | Pulmonary embolism |
Respiratory (J00-J99)
| Code | Description |
|---|---|
| J18.9 | Pneumonia, unspecified |
| J44.1 | COPD with acute exacerbation |
| J96.00 | Acute respiratory failure |
Digestive (K00-K95)
| Code | Description |
|---|---|
| K29.70 | Gastritis, unspecified |
| K80.20 | Cholelithiasis without cholecystitis |
| K85.9 | Acute pancreatitis |
Injury (S00-T88)
| Code | Description |
|---|---|
| S72.001 | Fracture of right femur |
| S06.0X0A | Concussion, initial encounter |
Required Specificity
| Element | Requirement |
|---|---|
| Laterality | Left, right, bilateral |
| Episode | Initial (A), subsequent (D), sequela (S) |
| Severity | Mild, moderate, severe |
| Complications | With/without complications |
POA Indicator
Present on Admission (POA) indicator required for inpatient claims. Affects DRG and reimbursement.
CC/MCC Impact
| Type | Description | DRG Impact |
|---|---|---|
| CC | Complication/Comorbidity | Moderate |
| MCC | Major CC | Significant |
CDI Collaboration
Work with Clinical Documentation Improvement (CDI) team to capture all CC/MCC conditions.
00 Inpatient ProFee Coding MOC Medical Necessity for Inpatient