Chapter 1.19: Numerical Classification of Diseases (Ashtodariya Adhyaya / अष्टोदरीय अध्याय)

Systematic numerical enumeration of diseases by type count, establishing that no endogenous disease manifests without dosha vitiation, with correlations to modern disease categories.

Source: Astanga Hridaya Sutrasthan by Vagbhata

This chapter provides a systematic numerical enumeration of diseases organized by type count, from single-type to twenty-type categories. It establishes the fundamental principle that no endogenous disease can occur without dosha vitiation, using the vivid analogy of a bird inseparable from its shadow. The classification aids differential diagnosis and treatment planning.