Ob-Gyn Coding Alert

Think All You Need for DEXA Scan Reimbursement Is the Proper CPT Code?, Wrong Its All About the Diagnosis

With television commercials asking women if they know their T scores, you can be sure they will be asking their ob-gyns for bone density studies. To ensure you receive the payment you deserve for this procedure, you should know your diagnosis options, coding experts say.
 
Ob-gyn coders have notoriously struggled to get Medicare reimbursement for dual energy x-ray absorptiometry (DEXA) scans. CMS not only restricts medical necessity and frequency of the exams but also limits the diagnoses that justify the scans.

First, Know the Codes

Physicians use DEXA scans to test for osteoporosis (733.00). Consequently, many female Medicare patients receive this test. The scans allow ob-gyns to track a patient's bone loss as well as monitor the positive effects of any treatments, such as estrogen replacement therapy, on the condition.
 
CPT provides three codes for DEXA scans:
 

  •  76075 Dual energy x-ray absorptiometry (DEXA), bone density study, one or   more sites; axial skeleton (e.g., hips, pelvis, spine)
     
  •  76076 appendicular skeleton (peripheral) (e.g., radius, wrist, heel)
     
  •  0028T Dual energy x-ray absorptiometry (DEXA) body composition study,   one or more sites.

    "My routine is to order the DEXA scan done at a facility, which then sends me the raw data," says Harry L. Stuber, MD, an independent gynecologist based in Cookeville, Tenn. He then reviews the data and prepares a report, billing 76075-26 (Professional component). The facility that performs the test reports 76075-TC (Technical component).
     
    "I then have the patient back for a 10- or 15- (occasionally 25) minute face-to-face encounter in which I explain where she stands, how she compares to the 'ideal' 30-year-old woman (T score) and also to other women her own age (Z score)," Stuber says. For this visit, he bills 99212-99214 (Office or other outpatient visit for the evaluation and management of an established patient ).
     
    But justifying bone density studies has been difficult because carriers have created lists of covered diagnoses that do not always correspond with the reason the patient is suspected of developing osteoporosis. The key to remember, however, is that DEXA scans are frequently a diagnostic test rather than a screening test. The physician must have documented that, based on symptoms or medical history, the patient is at high risk for developing osteoporosis.

    Medical Necessity Remains the Key

    According to section 4181.1 of the Medicare Carriers Manual (MCM), Medicare will pay for a bone mass measurement if the physician performs it on a "qualified individual." A qualified individual is a Medicare beneficiary who falls into at least one of the following medical categories:
     

  •  a woman whose healthcare provider has determined that she is estrogen-deficient and at clinical risk for osteoporosis, based on her medical history and other findings
     

  •  an individual receiving (or expecting to receive) glucocorticoid therapy equivalent to 7.5 mg of prednisone, or greater, per day for more than three months
     
  •  a person with primary hyperparathyroidism
     
  •  a woman being monitored to assess the response to or efficacy of a U.S. Food and Drug Administration-approved osteoporosis drug therapy.
     
    Based on these requirements, selecting and applying the proper diagnosis code(s) means the difference between getting your DEXA claim paid or creating another layer on your carrier's denial pile.
     
    To show a patient's estrogen deficiency or clinical risk for osteoporosis, Medicare offers several choices to demonstrate medical necessity:
     
  •  256.2 Postablative ovarian failure
     
  •  256.31 Premature menopause
     
  •  256.39 Other ovarian failure
     
  •  627.2 Symptomatic menopausal or female climacteric states
     
  •  627.4 Symptomatic states associated with artificial menopause
     
  •  V07.4 Postmenopausal hormone replacement therapy (see comments below)
     
  •  V49.81 Asymptomatic postmenopausal status (age-related) (natural).

    Keep in mind, however, that you cannot use 627.2 if the patient is not having postmenopausal or climacteric symptoms. But ICD-9 goes on to define 627.2 to include "symptoms, such as flushing, sleeplessness, headache, lack of concentration, associated with the menopause." When an ob-gyn interviews a peri- or postmenopausal woman being considered for a DEXA scan, most will exhibit at least one of these symptoms, Stuber says. "That is usually my go-to diagnosis because most of my menopausal patients get headaches occasionally, forget things, have a little vaginal dryness or a hot flash."
     
    Stuber goes on to clarify that a patient who is on hormones can still be "hormone deficient" if she is having symptoms. In fact, according to the American College of Obstetricians and Gynecologists' (ACOG) 2003 Compendium of Selected Publications, estrogen therapy "is the primary preventive and therapeutic modality for hypoestrogenic women with osteoporosis," he adds.
     
    Unfortunately, only a handful of Medicare fiscal intermediaries and carriers agree with ACOG. Anthem Health Plans of New Hampshire, Associated Hospitals of Maine, Blue Cross Blue Shield of Rhode Island, and Cahaba Government Benefits Administrators recently added V07.4 to their list of justifying diagnosis for DEXA scans. Consequently, you should monitor other carriers' bulletins to see if they are willing to acknowledge this connection.
     
    As for 256.2, using it would not be appropriate unless the woman's menopause is caused by surgery that removed her ovaries or radiation treatment that caused the ovaries to stop functioning. You can use an additional code with 256.2 to explain any symptoms the patient may have, according to ICD-9, but you aren't required to do so.
     
    Similarly, the ICD-9 code for premature menopause (256.31) represents the cessation of ovarian function before the age of 40, while natural menopause is the result of declining ovarian function due to aging of the ovaries and usually occurs between 40 and 50 years of age, according to ACOG's Obstetric-Gynecologic Terminology. Because most Medicare patients have gone through natural menopause, 256.31 would be incorrect to use, coding experts say.

    The Road Doesn't End at Estrogen Deficiency

     Other diagnosis codes that Medicare has stated will support DEXA scans include:
     

  •  733.12-733.14 Pathologic fractures
     
  •  733.90 Disorder of bone and cartilage, unspecified
     
  •  733.95 Stress fracture of other bone
     
  •  737.9 Unspecified curvature of spine
     
  •  V58.69 Long-term (current) use of other medications.

    Although Medicare seems very clear regarding which diagnoses it will accept to reimburse DEXA scans, you should not assign an ICD-9 code merely because you know it will get your practice paid. You should always code based on the ob-gyn's documentation. To do otherwise would be fraudulent.
     
    "I have seen people routinely code 'premature menopause' and always get paid," Stuber says. "But that diagnosis should only be used for those unusual cases in which it occurs before the age of 40, not for natural menopause." If you misuse this diagnosis, you could be faced with significant refunds in the case of an audit, he warns.
     
    "Too often, I have clients tell me that because a patient has expressed concern about possible risk, they will list signs and symptoms even though the patient is not currently experiencing any symptoms," says Judith Richardson, RN, MSA, CCS-P, a senior consultant with Hill & Associates. "Given today's climate and Medicare's diligent search for fraudulent behavior, providers should never create a diagnosis where one does not truly exist."
     
    Be sure to contact your insurance carriers to determine their accepted diagnoses for DEXA scans. Although Medicare has set certain parameters, payer rules may vary.

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