Beyond application, the market taxonomy distinguishes types of chronic phase markers, each influencing adoption patterns and pricing structures. Protein‑based markers, including cytokines and enzyme isoforms, remain the largest type, driven by established immunoassay platforms and broad clinical validation. Nucleic‑acid based markers, such as microRNA panels and cell‑free DNA assays, are gaining traction, offering higher specificity and enabling multiplexed panels, which expands their share despite higher development costs. Metabolite markers, derived from mass‑spectrometry profiling of long‑term metabolic shifts, serve niche indications but command premium pricing due to analytical complexity. Imaging biomarkers, integrating PET or MRI tracers for chronic disease visualization, occupy a smaller yet strategically important niche, supporting companion diagnostics and therapeutic monitoring. Each subtype’s contribution to the overall market is proportional to its analytical maturity, regulatory acceptance, and the clinical pathways it supports, collectively defining the market’s growth trajectory.