5. is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. To receive a GlycoMark test denial, please submit the following claim information: CPT ® code 84378 or 84999. Meetings. 99 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 790. This measure is to be submitted a minimum of once per performance period for patients with diabetes seen during the performance period. Hemoglobin A1c (hba1c) Poor Control (>9%) , Diabetes: Eye. $10 3051F Most recent hemoglobin A1c (HbA1c) level greater than or equal to 7. Search Page 1/1: A1C 1 result found: ICD-10-CM Diagnosis Code R73. 228 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 0% 2026F Eye imaging validated to match diagnosis from seven standard field stereoscopic photos results documented and reviewedFree, official information about 2012 (and also 2013-2015) ICD-9-CM diagnosis code 790. Performance Not Met: G2089: Most recent hemoglobin A1c (HbA1c) level 7. The most recent quality data code submitted will be used for. Combat the #1 denial reason - mismatched CPT-ICD-9 codes - with top Medicare carrier and private payer accepted diagnoses for the chosen CPT® code. Provider completes and documents hemoglobin A1C results when less than 7. To read the full article, sign in and subscribe to AHA Coding Clinic ® for ICD-10-CM and ICD-10-PCS . 81 - other international versions of ICD-10 D84. 4 The guidelines set goals for therapeutic effectiveness which must be evaluated frequently (e. The method for assay may be by color. 220 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2022 edition of ICD-10-CM R73. Z13. 8. Doctors often also use a fasting blood glucose test to. This is the American ICD-10-CM version of R73. Fasting plasma glucose (FPG), plasma glucose after 75-gram oral glucose tolerance test (OGTT) and hemoglobin A1c (A1c) are equally appropriate assays for prediabetes and diabetes screening. Z12. 69. Result Name Hemoglobin A1c. The 2024 edition of ICD-10-CM Z01. g. Glucose, Gestational Screen (50g), 135 Cutoff. 4% prediabetes range, the higher your A1C, the greater your risk is for developing type 2 diabetes. This revision is due to the Annual ICD-10 Code Update and is effective on 10/1/20. The 2024 edition of ICD-10-CM Z13. Setup Schedule. Patient is confined to home or other place of residence used as his or his home when the specimen is a type which would require the skills of a laboratory technician (e. The 2024 edition of ICD-10-CM O99. Covered diagnosis codes (part of the 'laboratory edit module') ICD-10-CM Diagnosis Code R73. Synonyms: acanthosis nigricans, acanthosis nigricans due to type 2. A. 99 (Other nonspecific findings on examination of blood). By doing so, you can ensure your Medicare patients’ lab tests are performed without delay and prevent disruptions to your office. - Fructosamine or glycated protein refers to glycosylated protein present in a serum or plasma sample. This diagnosis code reference guide is provided as an aid to physicians and office staff in determining when an ABN (Advance Beneficiary Notice) is necessary. Blood glucose is the main sugar found in your bloodstream. E72. if. I understand that we cannot code from lab values but both doctors are clearly trying to express the patients have DM with. 0. 7% to 6. E-beta thalassemia D56. 9 may differ. 818 may differ. D58. This is the American ICD-10-CM version of E11 - other international versions of ICD-10 E11 may differ. Hemoglobinuria - external causation; Hemoglobinuria, extrinsic; hemoglobinuria NOS (R82. Showing 1-25: ICD-10-CM Diagnosis Code E78. Index to Diseases and Injuries References. What diagnosis code will cover A1C?The 2021 edition of ICD-10-CM R73. 0% and less than 8. In 2022, the ICD codes will change again with the addition of two numbers—one that precedes the letter and one that comes at the end. E11. E11. The 2024 edition of ICD-10-CM became effective on October 1, 2023. Hemoglobin A1c. 00 diab d/t undrl cond w hyprosm w/o nonket hyprgly-hypros comaDebility, ICD-9 code 799. For this institution, the relative increase in the total number of tests between 2009 ( n = 35,948) and 2010 ( n = 39,028) was 9%. Diabetes screenings. 5. Code. 65 may differ. This documentation must be. ICD-10-CM Range E08-E13. CPT ® Code Set. Access to this feature is available in the following products: Find-A-Code Essentials. The diagnosis of T1DM is usually through a characteristic history supported by elevated serum glucose levels (fasting glucose greater than 126 mg/dL, random glucose over 200 mg/dL, or hemoglobin A1C (HbA1c exceeding 6. 65 is a billable diagnosis code used to specify type 2 diabetes mellitus with hyperglycemia. MODIFIERS KX, GA, GY AND GZ MODIFIERS: Suppliers must add a KX modifier to codes for shoes, inserts, and modification only if criteria 1-5 in the Non-Medical Necessity Coverage and Payment Rules section have been met. If you're living with diabetes, the test is also used to monitor how well you're managing blood sugar levels. This revision is due to the Annual ICD-10 Code Update and is effective on 10/1/20. The following coding and billing guidance is to be used with its associated Local coverage determination. CPT: 83036 (HEMOGLOBIN; GLYCOSYLATED A1C) Medicare Local Coverage Determination Policy HbA1c CPT: 83036 (HEMOGLOBIN; GLYCOSYLATED. 1: Type 2 diabetes mellitus with ketoacidosis. In ICD-9, essential hypertension was coded using 401. A1C has gone down from 5. Code Status Long code descriptor Effective 3045F DELETED Most recent hemoglobin A1c (HbA1c) level 7. If your hemoglobin A1C is 6. Monocytes (Absolute)ICD 10 code for Type 1 diabetes mellitus with diabetic neuropathic arthropathy. However, repeat testing may be indicated where results are normal in patients with conditions of a continuing risk of glucose metabolism abnormality (e. 810 - other international versions of ICD-10 O99. This is the American ICD-10-CM version of Z13. The code is valid during the current fiscal year for the submission of HIPAA. Prediabetes is a condition in which blood glucose or hemoglobin A1C (HbA1C) levels are higher than normal but not high enough to be classified as type 2 diabetes. 0%) (This is an inverse measure; the goal is to be less than or equal to 9. This can arise in two main. 01 - Impaired fasting glucose. 01 became effective on October 1, 2023. Service Area must be determined. • Diagnosis code Z36. E08 Diabetes mellitus due to underlying cond. This diagnosis code reference guide is provided as an aid to physicians and office staff in determining when an ABN. Within the ICD-10-CM Manual guidelines, there are mutually exclusive code pairs which are defined with an Excludes 1 note. 01 Type 2 diabetes mellitus with hyperosmolarity. The 2024 edition of ICD-10-CM E10 became effective on October 1, 2023. A type 1 excludes note is a pure excludes. 00) Headache (ICD-9-CM 784. R73. Hemoglobin, glycosylated (A1c) (CPT code 83036) Glycosylated hemoglobin in the presence of Hb variants or HbF (CPT code 83021) 2. The 2024 edition of ICD-10-CM E11. This is the American ICD-10-CM version of E72. Prediabetes is defined as an abnormal blood glucose level, an elevated A1c level, or an abnormal glucose tolerance test. 29 should only be used for claims with a date of service on or before September 30, 2015. 00-E13. diabetes mellitus ( E08-E13. 610. 899 became effective on October 1, 2023. 03 - Prediabetes. The hemoglobin A1c (HbA1c) test measures your average blood sugar levels over the past 3. 5% based on an NGSP-certified test. 649, Type 1 diabetes mellitus withunit codes: cpt codes: 16600 83036 36122 82985 hga1c/fructosamine d13. A1c (HbA1c). 22) Hypertensive chronic kidney disease (I12. A corresponding procedure code must accompany a Z code if a procedure is performed. 1 - other international versions of ICD-10 O15. s, offering a more tolerable, less time-consuming test for GDM. Weight gain in antipsychotic-naive patients: a review and meta-analysis. covers blood glucose (blood sugar) laboratory test screenings (with or without a carbohydrate challenge) if your doctor determines you’re at risk for developing diabetes. Find any ICD-10 code with our fast and free ICD-10 Lookup tool. This code represents the most recent HbA1c level is between 7. There weren’t as many codes to describe different conditions in the ICD-9, so you’ll notice that some of them have more than one possible corresponding ICD-10 code. Blood glucose determination may be done using whole blood, serum or plasma. 1 - Encounter for screening for diabetes mellitus. 810 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 5 mL) per 21 days* or 3 prefilled pens (4. 0% n CPT II 3044F:. ICD-10-CM Codes. CMS National Coverage Policy. Title XVIII of the Social Security Act §1833 (e) prohibits Medicare payment for any claim which lacks the necessary information to process the claim. We would like to show you a description here but the site won’t allow us. 09 [convert to ICD-9-CM] Other abnormal glucose. 0. 02 – Impaired glucose tolerance (oral) R73. 09 [convert to ICD-9-CM] Other abnormal glucose. 7% means you don’t have diabetes. low NOS D64. 0% (DM) A1c Note: CPT Cat II Codes will close the gap under the following scenarios (our claims system must be able to match the category II code’s date of service with the A1c lab test’s date of service):Following a diagnosis of diabetes, a combination of laboratory and clinical tests can be used to monitor blood glucose control, detect onset and progression of diabetic complications, and predict treatment response. Abnormal glucose measurement; Abnormal glucose tolerance test; Blood glucose abnormal; Elevated hemoglobin a1c measurement; High. When the clinical diagnostic lab procedure is billed as a routine screening service, as evidenced by the diagnosis code not found on the allowed diagnosis code list, the procedure code will deny. 02 – Impaired glucose tolerance. Item/Service Description. 1 - Encounter for screening for diabetes mellitus. Hemoglobin A1c Control for Patients With Diabetes (HBD)* 18-75 years with type 1 or type 2 diabetes Adults whose hemoglobin A1c was at the following levels during the measurement year: • HbA1c control < 8% • HbA1c poor control > 9% Notation of the most recent HbA1c screening noting date performed and result performed in current year. Hemoglobin A1c Blood Test. You. 41 [convert to ICD-9-CM] Elevated Lipoprotein (a) Elevated Lp (a) ICD-10-CM Diagnosis Code R73. 0% 3044F Most recent hemoglobin A1c (HbA1c) level < 7. 65 is that the terms "uncontrolled" and "out of control" have the same meaning. Glucose tolerance codes: R73. We'll be improving functionality based on expertise from Lightning MD as well as user feedback. Clinical Significance. E11. 5 may differ. Other general symptoms, ICD-9code 780. 1 of the Program Integrity Manual, to remove all coding from LCDs and incorporate into related Billing and Coding Articles. 09) R73. This is the American ICD-10-CM version of D84. Rethink your exercise plan. E11. However, repeat testing may be indicated where results are normal in patients with conditions where there is a continued risk for the development of hematologic abnormality. Code Classification: Endocrine, nutritional and metabolic diseases (E00–E89) Diabetes mellitus (E08-E13) Type 2 diabetes mellitus (E11) E11. 89 is excluded from Non-Coverage for CPT codes 86790 and 86794 when reported for Zika Virus Testing by PCR and ELISA Methods. Hope this helps!!!Important information for MedBen Rx clients using the Ventegra formulary: Effective October 1, an appropriate ICD-10 diagnosis code for type 2 diabetes will be required for certain Ozempic prescriptions and all other GLP-1 class medications. The 2021 edition of ICD-10-CM R73. The updated code also does not use letters "I" or "O" to avoid confusion with 1 and 0. Hemoglobin A1c (HbA1c) refers to the major component of hemoglobin A1. Applicable To. 828, Z03. 99 should only be used for claims with a date of service on or before September 30, 2015. Persons encountering health services for examinations. 1 is required in the header diagnosis What diagnosis code will cover A1C? R73. 41 [convert to ICD-9-CM] Elevated Lipoprotein (a) Elevated Lp (a) ICD-10-CM Diagnosis Code R73. 00. The code E11. Abnormal glucose measurement; Abnormal glucose tolerance test; Blood glucose abnormal; Elevated hemoglobin a1c measurement; High. HbA1c levels obtained at initial visit and 24–28 weeks gestation were compared between patients with and without GDM and tested as a. To report most recent hemoglobin A1c level <7. Hemoglobin A1C (HbA1c) is a stable adduct of glucose on the beta-chain of hemoglobin (N- [1-deoxyfructosyl]hemoglobin). V77. To get started, identify your. The patient was not receiving medical treatment or medications known to affect red blood cells or Hb A1c measurement (1). If Patient is diagnosed with hypertriglycerdemia then we can only use 272. • Provider completes and documents hemoglobin A1C greater than or equal toCodes. INSTRUCTIONS: This measure is to be submitted a minimum of once per performance period for patients with diabetes seen during . Z codes represent reasons for encounters. Using the data in the table below, calculate the mean to one decimal place. The Diabetes Management Test measures your glucose and hemoglobin A1c levels. Z13. 228 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 0, V81. The screening diagnosis code V77. This test indicates your average blood sugar level for the past 2 to 3 months. 21 E08. 84, Long term (current) use of oral hypoglycemic drugs, and Z79. Note: The following CPT codes associated with the services outlined in this Billing and Coding Article will not have diagnosis code limitations applied at this time: 82180, 84252, 84425, 84446, 84590, 84597 Note: Code 82306 includes fractions, if performed. 31 BMI 31. 0% (CDC-A1C) October 1,. Hgb A1c MFr Bld. 0% and less than 8. E11. A condition referring to fasting plasma glucose levels being less than 140 mg per deciliter while the plasma glucose levels after a glucose tolerance test being more than 200 mg per deciliter at 30, 60, or 90 minutes. 2 may differ. Constant Spring D58. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024. A normal A1C level is below 5. 2. 2018 ADA standards of medical care mandate that two abnormal test results (ie, both FPG and A1c) are needed for diagnosis unless there is a clear clinical. 89 became effective on October 1, 2023. G0438 – Initial visit. 4 (HPFH) H Constant Spring D56. Currently, only “out of control” and “poorly controlled” diabetes mellitus are coded as diabetes with hyperglycemia. Hemoglobin A1C: Table 2: Diagnosis Code and Descriptor: Criteria Modifier: Diagnosis Code*. fasting plasma glucose test of 110–125 mg/dL. Combat the #1 denial reason - mismatched CPT-ICD-9 codes - with top Medicare carrier and private payer accepted diagnoses for the chosen. 500 results found. 319 E08. 6%. This article is being revised in order to adhere to CMS requirements per chapter 13, section 13. g. This was the first year ICD-10-CM was implemented into the HIPAA code set. Updating ICD-10 Codes. Showing 1-25: ICD-10-CM Diagnosis Code R73. 0 percent and 8. E11. Hemoglobin (A1C); use CPT codes Disagree with proposed HCPCS code Gxxxx Hemoglobin (A1C); use CPT codes and fees for 83036 ($13. 4% indicates prediabetes, and a level of 6. Hemoglobin A1C ; 1,5-AG Assay;. 02 or R73. ICD-9-CM 790. 1 of the Program Integrity Manual, to remove all coding from LCDs and incorporate into related Billing and Coding Articles. 0 Page 5 of 21 December 2021 NARRATIVE MEASURE SPECIFICATION DESCRIPTION: Percentage of patients 18 - 75 years of age with diabetes who had hemoglobin A1c > 9. This is the American ICD-10-CM version of D56. Diagnosis codes must be applicable to the patient’s symptoms or conditions and must be consistent with documentation in the patient’s medical record. 9. 01 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes). 5% or more indicates diabetes. , diabetes) should be reported to support medical necessity. R76. Diagnosis (ICD-9) Codes. This chapter includes symptoms, signs, abnormal. 01 Pre-existing type 1 diabetes. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024. Applicable To. 10/10/2019. 0% (DM) E08. If your test, item or service isn’t listed, talk to your doctor or other health care provider. 03 – Prediabetes R73. 0 became effective on October 1, 2023. The diagnosis or valid ICD-10 diagnosis code. 41 [convert to ICD-9-CM] Elevated Lipoprotein (a) Elevated Lp (a) ICD-10-CM Diagnosis Code R73. ICD-10-CM Diagnosis Code R79. 69 may differ. Example: Diabetes type 2 with A1c being tested during encounter or stay. 7. The 2024 edition of ICD-10-CM Z13. Code 82652 includes fractions, if performed. Elevated blood glucose level (R73) Other abnormal glucose (R73. This NCD lists the ICD-10 codes for HbA1c for frequencies up to once every 3 months. 5 mL 1 prefilled pen (3 mL) per 21 days* or 4 prefilled pens (9 mL) per 63 days* of 2 mg/3 mLHemoglobinuria due to hemolysis from other external causes. Comprehensive Diabetes-A1C (CDC-A1c): New CPT-II codes (3051F and 3052F) implemented to replace 3045F. 29 E08. Diagnosis. 70 - DMII circ nt st uncntrld: Combination Flag - Multiple codes are needed to describe the source diagnosis code. Synonyms: diabetic - poor control, hemoglobin a1c - diabetic control. The most recent quality-data code submitted will be used for performance. 2 - other international versions of ICD-10 E78. r39. 0% NOTE: The clinical information provided is intended to aid in the understanding of the Comprehensive Diabetesdiagnosis code(s), and category II code 3085F. This is the American ICD-10-CM version of E88. Applicable To. 8. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes). Showing 1-25: ICD-10-CM Diagnosis Code E78. Thus R73. ICD-9-CM 790. ICD-10 uses only a single code for individuals. R73. Performance of the HbA1c test at least 2 times a year in patients who are meeting treatment goals and who have stable glycemic control is supported by the American Diabetes Association Standards of Medical Care in Diabetes - 2016 (ADA Standards). R73. Fructosamine or glycated protein refers This revision is due to the Annual ICD-10 Code Update and is effective on 10/1/20. 311 E08. Elevated blood glucose level (R73) R71. 56 on the clinical laboratory fee schedule. This code description may also have Includes, Excludes, Notes, Guidelines, Examples and other information. e06. Cardio IQ® Hemoglobin A1c - To assist with control of blood glucose levels, the American Diabetes Association (ADA) has recommended glycated hemoglobin testing (HbA1c) twice a year for patients with stable glycemia, and quarterly for patients with poor glucose control. 10 E08. R2. Hemoglobin A1c (HbA1c) measurements are used for monitoring the long-term blood glucose control in diabetic patients, and as an aid in the diagnosis of diabetes, and in identifying patients who may be at risk for developing diabetes mellitus (prediabetes). E11. Prediabetes is defined by an HbA1c of 5. S. E10. 8 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Result Code 10009230. 2 Medicare Preventive Services. Abnormal findings on examination of blood, without diagnosis. 0%. Z13. Hemoglobin A1c level was not performed during the measurement period (12 months) OR . • Carriers/intermediaries will deny claims with procedure codes of 82465, 83718, or 84478 when billed within 60 months of a previous paid claim with a diagnosis code of V81. Secondary dyslipidemia, including diabetes mellitus, disorders of gastrointestinal absorption, chronic renal failure. A condition referring to fasting plasma glucose levels being less than 140 mg per deciliter while the plasma glucose levels after a glucose tolerance test being more. What Diagnosis Code Will Cover A1c? – Answersall. 2, and with a procedure code of 80061, 82465, 83718, or 84478. Type 1 Excludes. 2%. Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC; 322000: Comp. On average, patients randomized to receive the maximum recommended dose of Mounjaro (15 milligrams) had lowering of their hemoglobin A1c (HbA1c) level (a measure of blood sugar control) by 1. This is the American ICD-10-CM version of Z01. The updated code also does not use letters "I" or "O" to avoid confusion with 1 and 0. 00) Step 2: Checkout - go to Checkout and complete the checkout process there. The International Classification of Diseases, 10th Revision—Clinical Modification (ICD-10) is designed to accurately classify and categorize all illnesses and diseases seen in the U. 85025 *Not covered by Aetna and CignaCPT CAT II 3051F Most recent hemoglobin A1C (HbA1C) level greater than or equal to 7% and less than 8% CPT CAT II 3052F Most recent hemoglobin A1C (HbA1C) level greater than or equal to 8% and less than or equal to 9% NOTE: The clinical information provided is not intended to interfere with clinical or coding judgment. 09 is a billable diagnosis code used to specify a medical diagnosis of other abnormal glucose. Get free rules, notes, crosswalks, synonyms, history for ICD-10 code E10. 228 may differ. 649 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 65 Type 2 diabetes mellitus with hyperglycemia. A normal, healthy person should have A1C level below 7%. 0 Pre-existing type 1 diabetes mellitus, in pre. Z13. This is the American ICD-10-CM version of R73 - other international versions of ICD-10 R73 may differ. ICD-10 code description ICD-9 code (effective through 9-30-2015) ICD-9 code description Z13. The 2024 edition of ICD-10-CM R42 became effective on October 1, 2023. Learn more in ICD-10 for Ophthalmology. Showing 1-25: ICD-10-CM Diagnosis Code R73. ICD-10. 7 percent and 6. Essential (primary) hypertension: I10. 0% and < 9. This chapter includes symptoms, signs, abnormal. 60. Hemoglobin A1c results from the non-enzymatic glycation of the amino (N)-terminal valine residue of hemoglobin A. 65, Type 2 diabetes mellitus with hyperglycemia with hypoglycemia without coma E10. Billable/Specific Code. 6 should only be used for claims with a date of service on or before September 30, 2015. R73. 65 is a billable ICD code used to specify a diagnosis of type 1 diabetes mellitus with hyperglycemia. ICD-10-CM Diagnosis Code D56. 9 (unspecified). See the CMSOrder Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC; 322000: Comp. S. 7 to 6. Reimbursement is based on submitting a claim with the appropriate ICD-10 diagnosis code to match the CPT code listed within this policy. This is the American ICD-10-CM version of Z83. Hemoglobin A1c between 7 percent to 10 percent indicating borderline diabetic control;What does this mean for the Code Lookup? 1. 1 Encounter for screening for diabetes mellitus. Glycated protein refers to measurement of the component of the specific protein that is glycated usually by colorimetric method or affinity chromatography. E08 Diabetes mellitus due to underlying cond. RML does not recommend any diagnosis codes for testing. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition. What diagnosis will cover HGB A1c? The measurement of hemoglobin A1c is recommended for diabetes management, including screening, diagnosis, and monitoring for diabetes and prediabetes. Setup Schedule. The 2024 edition of ICD-10-CM E61. Elevated blood glucose level (R73) R71. Type 1 Excludes. 57021-8. 9) General Medical Examination (ICD-9-CM V70. A high hemoglobin A1c , or. ICD-10-CM Codes. 0% (DM) Date of screening 3051F Most recent hemoglobin A1c (HbA1c) level greater than or equal to. 00/Z00. 2 became effective on October 1, 2023. 1 (benign), or 401. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM. O15. This is the American ICD-10-CM version of R73. A15. This code is specific for measurement of total HbIf repeat testing is performed, a more descriptive diagnosis code (e. 109 results found. 1 is a billable ICD code used to specify a diagnosis of encounter for screening for diabetes mellitus. This article is being revised in order to adhere to CMS requirements per chapter 13, section 13. 7% to 6. Coding guidance In ICD-10-CM, diabetes is classifed as diabetes (by type)The diagnosis can be made with a fasting plasma glucose level of 126 mg per dL or greater; an A1C level of 6. 4%. If at 8% or above, there may be a need to modify the patient’s care plan for diabetes. 5% based on an NGSP-certified test. 811 may differ. Note: Providers are reminded to. R73. Abnormal glucose measurement; Abnormal glucose tolerance test; Blood glucose abnormal; Elevated hemoglobin a1c measurement; High hemoglobin a1c level; Prediabetes; Abnormal glucose NOS; Abnormal non-fasting glucose tolerance. This diagnosis code reference guide is provided as an aid to physicians and office staff in determining when an ABN (Advance Beneficiary Notice) is necessary. A higher A1C target of <7. This means, it can take up to 3 months to notice significant changes in your A1C.