Summary & Overview
CPT 0640T: Noncontact Near‑Infrared Tissue Spectrometry
CPT code 0640T denotes a noncontact near–infrared tissue spectrometry procedure in which a provider captures and interprets optical images of target tissue by measuring absorption and emission of near–infrared light and produces a formal report. The code is specific to studies performed without skin contact and is intended for the first or only anatomic site evaluated for clinical reasons other than peripheral arterial disease screening. Nationally, this code represents adoption of advanced optical imaging techniques in diagnostic workflows and may affect coverage policy and coding practices as these technologies diffuse into outpatient settings.
Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and typical sites of service, payer coverage landscape, common modifier usage, and where to look for policy updates related to noncontact spectrometry. The publication explains coding specificity for noncontact versus contact devices, highlights documentation and reporting expectations tied to interpretation and imaging acquisition, and outlines practical billing considerations relevant to outpatient imaging centers and clinic settings. Data not available in the input is noted where applicable, and the focus remains on code definition, clinical use cases, and payer relevance at a national level.
Billing Code Overview
CPT code 0640T describes a noncontact near–infrared tissue spectrometry study in which the provider exposes the target tissue to near–infrared light, acquires images, analyzes the tissue’s absorption and emission of light, interprets the results, and completes a report. This code applies when the device’s spectrometer sensors do not have direct contact with the skin and is used for the first or only anatomic site studied for a reason other than peripheral arterial disease screening.
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Service type: Diagnostic imaging and optical spectroscopy study using near–infrared light, noncontact
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Typical site of service: Outpatient imaging center, ambulatory surgical center, or clinic-based diagnostic facility where noncontact optical imaging can be performed
Clinical & Coding Specifications
Clinical Context
A 58-year-old outpatient with a history of suspicious cutaneous lesion on the dorsal forearm is referred for noncontact near-infrared spectroscopic tissue assessment using a handheld imaging device. The procedure is performed in an ambulatory clinic or dermatology office. The provider positions the noncontact spectrometer at the target site, acquires near‑infrared images without direct skin contact, analyzes tissue absorption and emission signatures, documents findings, interprets results, and completes a written report. The study is billed with 0640T for the first or only anatomic site when the indication is evaluation of a focal lesion (for example, to help characterize lesion vascularity or oxygenation) rather than routine peripheral arterial disease screening. Typical workflow includes patient consent, positioning, image acquisition (noncontact), immediate review of images by the provider, and generation of an interpretation and impression in the chart. Typical site of service is an ambulatory surgical center, outpatient clinic, or dermatology office equipped with the noncontact near‑infrared imaging device.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the provider interpretation/read of the imaging study separated from technical component. |