Comprehensive Tier Diagnosis Library

Complete reference of Tier 1, 2, and 3 comorbidities organized by body system with ICD-10 codes and clinical criteria

Search Diagnosis Library
69 diagnoses found
Cardiovascular System
7 diagnoses in this category

Acute Decompensated Heart Failure

I50.23, I50.33, I50.43

Tier 1 (High-Impact)

Clinical Criteria: Acute exacerbation with pulmonary edema, requires IV diuretics

Acute Myocardial Infarction (Recent)

I21.x

Tier 1 (High-Impact)

Clinical Criteria: MI within past 4 weeks, ongoing cardiac monitoring

Chronic Systolic Heart Failure

I50.22, I50.32, I50.42

Tier 2 (Moderate)

Clinical Criteria: Compensated CHF on stable medication regimen

Chronic Diastolic Heart Failure

I50.32

Tier 2 (Moderate)

Clinical Criteria: Compensated CHF, requires ongoing diuretic therapy

Atrial Fibrillation with RVR

I48.91

Tier 2 (Moderate)

Clinical Criteria: Requires rate control medications and anticoagulation

Well-Controlled Hypertension

I10

Low-Impact

Clinical Criteria: On 1-2 medications, BP stable, no complications

Hyperlipidemia

E78.5

Low-Impact

Clinical Criteria: On statin therapy, no active symptoms

Respiratory System
8 diagnoses in this category

Acute Respiratory Failure

J96.00, J96.01, J96.02

Tier 1 (High-Impact)

Clinical Criteria: Requires ventilatory support (BiPAP, CPAP, high-flow O2)

Aspiration Pneumonia

J69.0

Tier 1 (High-Impact)

Clinical Criteria: Pneumonia with aspiration risk, requires IV antibiotics

COPD with Acute Respiratory Failure

J44.1

Tier 1 (High-Impact)

Clinical Criteria: COPD exacerbation requiring ventilatory support

COPD with Acute Exacerbation

J44.1

Tier 2 (Moderate)

Clinical Criteria: Exacerbation without respiratory failure, on steroids/bronchodilators

Bacterial Pneumonia (Non-Aspiration)

J15.9, J18.1

Tier 2 (Moderate)

Clinical Criteria: Community-acquired pneumonia on antibiotics

Chronic Respiratory Insufficiency

J96.10

Tier 2 (Moderate)

Clinical Criteria: Requires continuous supplemental oxygen

Stable COPD

J44.9

Low-Impact

Clinical Criteria: No acute exacerbation, on maintenance inhalers only

Asthma (Well-Controlled)

J45.20

Low-Impact

Clinical Criteria: No recent exacerbations, on controller medications

Renal System
5 diagnoses in this category

Acute Kidney Injury

N17.9

Tier 1 (High-Impact)

Clinical Criteria: Acute rise in creatinine, may require dialysis

CKD Stage 5 / ESRD

N18.5, N18.6

Tier 1 (High-Impact)

Clinical Criteria: eGFR <15 or on dialysis

CKD Stage 4 (Severe)

N18.4

Tier 2 (Moderate)

Clinical Criteria: eGFR 15-29, requires monitoring and management

CKD Stage 3 (Moderate)

N18.3

Tier 2 (Moderate)

Clinical Criteria: eGFR 30-59, on renal protective medications

CKD Stage 2 (Mild)

N18.2

Low-Impact

Clinical Criteria: eGFR 60-89, minimal intervention needed

Infectious System
7 diagnoses in this category

Sepsis

A41.9

Tier 1 (High-Impact)

Clinical Criteria: Documented infection with SIRS criteria, on IV antibiotics

Septic Shock

R65.21

Tier 1 (High-Impact)

Clinical Criteria: Sepsis with hypotension requiring vasopressors

Clostridium Difficile Colitis

A04.7

Tier 1 (High-Impact)

Clinical Criteria: Active C. diff infection requiring isolation and treatment

Complicated Urinary Tract Infection

N39.0

Tier 2 (Moderate)

Clinical Criteria: UTI with systemic symptoms, on IV antibiotics

Wound Infection

L08.9, T81.4

Tier 2 (Moderate)

Clinical Criteria: Surgical or pressure ulcer infection requiring antibiotics

MRSA Colonization (Active)

Z22.322

Tier 2 (Moderate)

Clinical Criteria: Requires contact precautions, affects therapy logistics

History of UTI (Resolved)

Z87.440

Low-Impact

Clinical Criteria: Past infection, no current treatment needed

Endocrine/Metabolic System
9 diagnoses in this category

Severe Protein-Calorie Malnutrition

E43, E44.0

Tier 1 (High-Impact)

Clinical Criteria: Albumin <2.5, BMI <18.5, significant weight loss

Morbid Obesity

E66.01

Tier 1 (High-Impact)

Clinical Criteria: BMI ≥40, significantly affects mobility and care

Diabetic Ketoacidosis (Recent)

E10.10, E11.10

Tier 1 (High-Impact)

Clinical Criteria: Recent DKA requiring ICU-level care

Moderate Malnutrition

E44.1

Tier 2 (Moderate)

Clinical Criteria: Albumin 2.5-3.0, requires nutritional supplementation

Diabetes with Multiple Complications

E11.65, E11.69

Tier 2 (Moderate)

Clinical Criteria: Diabetes with neuropathy, nephropathy, or retinopathy

Diabetes with Neuropathy

E11.40

Tier 2 (Moderate)

Clinical Criteria: Diabetic neuropathy affecting mobility or sensation

Obesity (BMI 30-39.9)

E66.9

Tier 2 (Moderate)

Clinical Criteria: Obesity affecting mobility, requires bariatric equipment

Type 2 Diabetes (Well-Controlled)

E11.9

Low-Impact

Clinical Criteria: On oral medications only, HbA1c <7.5%, no complications

Hypothyroidism (Treated)

E03.9

Low-Impact

Clinical Criteria: On stable levothyroxine dose, TSH normal

Hematologic System
6 diagnoses in this category

Severe Anemia (Hgb <8 g/dL)

D64.9

Tier 1 (High-Impact)

Clinical Criteria: Hemoglobin <8, may require transfusion

Acute Deep Vein Thrombosis

I82.40

Tier 1 (High-Impact)

Clinical Criteria: Recent DVT requiring anticoagulation and monitoring

Pulmonary Embolism

I26.99

Tier 1 (High-Impact)

Clinical Criteria: Recent PE, on anticoagulation, may have respiratory compromise

Moderate Anemia (Hgb 8-10 g/dL)

D64.9

Tier 2 (Moderate)

Clinical Criteria: Hemoglobin 8-10, causes fatigue affecting therapy

Thrombocytopenia

D69.6

Tier 2 (Moderate)

Clinical Criteria: Low platelets requiring bleeding precautions

Mild Anemia (Hgb >10 g/dL)

D64.9

Low-Impact

Clinical Criteria: Hemoglobin >10, minimal symptoms

Neurologic System
8 diagnoses in this category

Complete Hemiplegia

G81.90

Tier 1 (High-Impact)

Clinical Criteria: Total paralysis of one side, requires maximal assistance

Quadriplegia/Tetraplegia

G82.50

Tier 1 (High-Impact)

Clinical Criteria: Paralysis of all four limbs

Seizure Disorder (Uncontrolled)

G40.909

Tier 1 (High-Impact)

Clinical Criteria: Frequent seizures despite medications, safety concerns

Hemiparesis (Weakness)

G81.94

Tier 2 (Moderate)

Clinical Criteria: Weakness (not complete paralysis) affecting one side

Peripheral Neuropathy (Severe)

G62.9

Tier 2 (Moderate)

Clinical Criteria: Significant sensory/motor deficits affecting mobility

Parkinson's Disease

G20

Tier 2 (Moderate)

Clinical Criteria: Affects mobility, requires medication management

Seizure Disorder (Well-Controlled)

G40.909

Low-Impact

Clinical Criteria: No recent seizures, on stable medication regimen

Mild Peripheral Neuropathy

G62.9

Low-Impact

Clinical Criteria: Minimal symptoms, does not significantly affect function

Integumentary System
6 diagnoses in this category

Pressure Ulcer Stage 4

L89.xx4

Tier 1 (High-Impact)

Clinical Criteria: Full-thickness tissue loss with exposed bone/tendon

Pressure Ulcer Stage 3 (Multiple)

L89.xx3

Tier 1 (High-Impact)

Clinical Criteria: Multiple Stage 3 ulcers requiring extensive wound care

Pressure Ulcer Stage 3

L89.xx3

Tier 2 (Moderate)

Clinical Criteria: Full-thickness skin loss, requires wound care

Pressure Ulcer Stage 2 (Multiple)

L89.xx2

Tier 2 (Moderate)

Clinical Criteria: Multiple Stage 2 ulcers affecting positioning

Pressure Ulcer Stage 1

L89.xx1

Low-Impact

Clinical Criteria: Non-blanchable erythema, intact skin

Pressure Ulcer Stage 2

L89.xx2

Low-Impact

Clinical Criteria: Partial-thickness skin loss (single ulcer)

Psychiatric System
5 diagnoses in this category

Major Depressive Disorder (Active)

F32.9, F33.1

Tier 2 (Moderate)

Clinical Criteria: Active depression affecting therapy participation

Anxiety Disorder (Severe)

F41.9

Tier 2 (Moderate)

Clinical Criteria: Severe anxiety limiting therapy tolerance

Delirium

F05

Tier 2 (Moderate)

Clinical Criteria: Acute confusion affecting cognition and safety

Depression (Well-Controlled)

F32.9

Low-Impact

Clinical Criteria: On stable antidepressant, minimal symptoms

Anxiety (Mild)

F41.9

Low-Impact

Clinical Criteria: Mild anxiety not significantly affecting function

Gastrointestinal System
4 diagnoses in this category

Dysphagia (Severe)

R13.10

Tier 2 (Moderate)

Clinical Criteria: Requires modified diet, aspiration risk

Chronic Diarrhea

K59.1

Tier 2 (Moderate)

Clinical Criteria: Frequent diarrhea affecting therapy schedule

GERD (Treated)

K21.9

Low-Impact

Clinical Criteria: On PPI, symptoms controlled

Constipation

K59.00

Low-Impact

Clinical Criteria: Managed with bowel regimen

Musculoskeletal System
4 diagnoses in this category

Multiple Fractures (Recent)

Various

Tier 2 (Moderate)

Clinical Criteria: Multiple fractures affecting mobility and weight-bearing

Severe Osteoarthritis

M19.90

Tier 2 (Moderate)

Clinical Criteria: Severe joint disease limiting mobility, requires pain management

Osteoarthritis (Mild-Moderate)

M19.90

Low-Impact

Clinical Criteria: Joint disease not significantly limiting function

Osteoporosis

M81.0

Low-Impact

Clinical Criteria: On treatment, no recent fractures

Tier Classification Legend
Tier 1 (High-Impact)

High-impact comorbidities that significantly affect rehabilitation. Even ONE Tier 1 comorbidity = Tier 3 payment (highest).

Tier 2 (Moderate)

Moderate-impact comorbidities requiring active treatment. 1-2 Tier 2 comorbidities = Tier 2 payment. 3+ Tier 2 comorbidities = Tier 3 payment.

Low-Impact

Low-impact conditions that don't significantly affect rehabilitation. Only low-impact comorbidities = Tier 1 payment (base).