Germany’s 10 Most Expensive Diagnosis Groups

Key Takeaways

• The largest spending blocks reflect illnesses that affect large parts of the population, not rare high-cost events.
• Dental diseases generate the highest total expenditure at €32.8 billion or €390 per resident. Routine and repeated outpatient care adds up across millions of people.
• Ageing plays a central role. Dementia, heart disease and joint disorders become more common in older age groups and account for a growing share of health spending.
• Chronic conditions drive much of the system’s burden. They require long-term management rather than one-time treatment, and costs accumulate gradually through medication, monitoring and rehabilitation.

Top Diagnosis Groups by Cost of Illness

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Germany’s most expensive diagnosis groups are not necessarily the ones that dominate public debate.

The largest cost block in 2023 is diseases of the oral cavity, salivary glands, and jaws. At €32.8 billion in total, this equals roughly €390 per resident.

This does not mean dental conditions are the most dangerous. It means they are the most common.

Almost everyone requires dental care at some point. Treatment is usually outpatient, and visits are repeated over time. What drives the cost is not severity, but frequency. When care is routine and widespread, moderate expenses accumulate into a large national total.

The second largest block is organic mental disorders, which include dementia. This corresponds to about €300 per resident.

Here, the mechanism is different.

Instead of high volume, the cost is shaped by duration:

• Long-lasting illness
• Ongoing supervision
• Long-term care needs

Dementia prevalence rises sharply with age, so it becomes more visible as Germany’s population ages. The financial weight reflects sustained care over years, not short hospital stays.

Germany’s Healthcare Expenditure Vs. Aging Population ->

Cardiovascular diseases appear repeatedly in the ranking, reinforcing how central they remain to the health system:

• Other forms of heart disease (€260 per resident)
• Cerebrovascular diseases such as stroke (€200)
• Ischaemic heart diseases (€100)

Together, they represent a substantial share of total health spending.

Cardiovascular disease remains a leading cause of death in Germany. Even when survival improves, long-term medication, monitoring, and rehabilitation continue. The result is not a single expensive episode, but ongoing management. The cost accumulates quietly.

A similar pattern emerges with musculoskeletal conditions.

• Osteoarthritis: €190 per resident
• Dorsopathies (including chronic back problems): €160

These are rarely fatal illnesses. But they are widespread and persistent, especially in older age groups.

Treatment often involves physiotherapy, pain management, sometimes surgery, and long recovery periods. Again, it is the length of care that shapes expenditure, not dramatic intensity.

Mood disorders and diabetes mellitus reinforce this structure.

• Mood disorders: ~€140 per resident
• Diabetes: ~€120 per resident

Both require continuous management rather than one-time intervention. Regular medication, monitoring, and follow-up care extend across years.

Taken together, the per-resident figures clarify the broader structure of spending. The largest financial burdens are not primarily the result of rare emergencies or high-cost procedures. They stem from widespread and persistent conditions, especially in an ageing population.

In that sense, the health budget mirrors demographic reality. It is shaped less by sudden crises and more by the steady management of illnesses that endure over time.