Coding Ahead
CasePilot
Medical Coding Assistant
Case2Code
Search and Code Lookup Tool
CareerCenter
Medical Coding Job Board
Log in Register free account

Need help choosing the right code?

Ask CasePilot about procedures, modifiers, bundling, and coding guidance.

Try CasePilot

Official Description

Cyanocobalamin (Vitamin B-12); unsaturated binding capacity

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

Cyanocobalamin, commonly known as Vitamin B-12, is a vital nutrient that belongs to the B-vitamin family. It is essential for various metabolic processes, including the production of red blood cells and the proper functioning of the nervous system. The measurement of cyanocobalamin levels in the blood is crucial for diagnosing conditions related to its deficiency, such as pernicious anemia and other forms of anemia. Additionally, individuals adhering to strict vegan diets, those with chronic infections like HIV, and pregnant women may experience reduced levels of this important vitamin. The procedure associated with CPT® Code 82608 specifically focuses on assessing the unsaturated binding capacity of cyanocobalamin in the serum. This capacity can be indicative of certain medical conditions; for instance, it may be elevated in diseases such as myelocytic leukemia, polycythemia vera, and some liver disorders, as well as in Gaucher disease. Conversely, decreased levels of unsaturated binding capacity may be observed in cases of megaloblastic anemia due to congenital transcobalamin II deficiency and other underlying causes. The testing process involves obtaining a blood sample through a separately reportable venipuncture, followed by serum analysis using a quantitative radioimmunoassay method.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 82608 is indicated for the assessment of cyanocobalamin unsaturated binding capacity in various clinical scenarios. The following conditions may warrant this testing:

  • Pernicious Anemia - A condition where the body cannot properly absorb vitamin B-12 due to a lack of intrinsic factor.
  • Other Forms of Anemia - Various anemic conditions that may affect vitamin B-12 levels.
  • Strict Vegan Diet - Individuals following this diet may have reduced intake of vitamin B-12, necessitating monitoring.
  • Chronic Infections - Conditions such as HIV can impact vitamin B-12 levels and binding capacity.
  • Pregnancy - Pregnant women may require monitoring of vitamin B-12 levels due to increased nutritional demands.
  • Myelocytic Leukemia - A type of cancer that can elevate unsaturated binding capacity.
  • Polycythemia Vera - A blood disorder that may also show elevated binding capacity.
  • Liver Disorders - Certain liver conditions can affect vitamin B-12 metabolism and binding.
  • Gaucher Disease - A genetic disorder that may influence vitamin B-12 levels.
  • Megaloblastic Anemia - Particularly from congenital transcobalamin II deficiency, which can lead to decreased binding capacity.

2. Procedure

The procedure for CPT® Code 82608 involves several key steps to ensure accurate measurement of cyanocobalamin unsaturated binding capacity. The first step is the collection of a blood sample, which is performed through a venipuncture. This process involves inserting a needle into a vein, typically in the arm, to draw blood into a collection tube. It is important that this venipuncture is reported separately to ensure proper billing and documentation. Once the blood sample is obtained, it is processed to separate the serum from the cellular components. The serum is then subjected to a quantitative radioimmunoassay, a sensitive laboratory technique that allows for the precise measurement of the unsaturated binding capacity of cyanocobalamin. This method utilizes radioactively labeled antibodies that specifically bind to cyanocobalamin, enabling the quantification of its binding capacity in the serum. The results of this test provide valuable information regarding the patient's vitamin B-12 status and can assist in diagnosing various hematological and metabolic disorders.

3. Post-Procedure

After the procedure associated with CPT® Code 82608, patients may experience minimal discomfort at the venipuncture site, which typically resolves quickly. There are no specific post-procedure care instructions required for this test, but patients are generally advised to maintain hydration and can resume normal activities immediately. The results of the unsaturated binding capacity test will be analyzed and reported by the laboratory, and healthcare providers will interpret these results in the context of the patient's overall clinical picture. It is essential for providers to follow up with patients to discuss the findings and any necessary further evaluations or treatments based on the results.

Short Descr B-12 BINDING CAPACITY
Medium Descr CYANOCOBALAMIN VIT B-12 UNSAT BINDING CAPACITY
Long Descr Cyanocobalamin (Vitamin B-12); unsaturated binding capacity
Status Code Statutory Exclusion (from MPFS, may be paid under other methodologies)
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 9 - Not Applicable
Multiple Procedures (51) 9 - Concept does not apply.
Bilateral Surgery (50) 9 - Concept does not apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 9 - Concept does not apply.
Co-Surgeons (62) 9 - Concept does not apply.
Team Surgery (66) 9 - Concept does not apply.
Diagnostic Imaging Family 99 - Concept Does Not Apply
CLIA Waived (QW) No
APC Status Indicator Conditionally packaged laboratory tests
Type of Service (TOS) 5 - Diagnostic Laboratory
Berenson-Eggers TOS (BETOS) T1H - Lab tests - other (non-Medicare fee schedule)
MUE 1
CCS Clinical Classification 233 - Laboratory - Chemistry and Hematology
90 Reference (outside) laboratory: when laboratory procedures are performed by a party other than the treating or reporting physician or other qualified health care professional, the procedure may be identified by adding modifier 90 to the usual procedure number.
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
GA Waiver of liability statement issued as required by payer policy, individual case
GW Service not related to the hospice patient's terminal condition
Date
Action
Notes
2015-01-01 Note AMA Guidelines changed.
Pre-1990 Added Code added.
Code
Description
CasePilot

Get instant expert-level medical coding assistance.

Ask about:
CPT Codes Guidelines Modifiers Crosswalks NCCI Edits Compliance Medicare Coverage
Example: "What is CPT code 99213?" or "Guidelines for E/M services"