ICD-10-CM Code E21.0
Billable CodeBillable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
E21.0 is a billable ICD code used to specify a diagnosis of primary hyperparathyroidism. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code E210 is used to code Osteitis fibrosa cystica
Osteitis fibrosa cystica /ˌɒstiːˈaɪtᵻs faɪˈbroʊsə ˈsɪstᵻkə/, abbreviated OFC, also known as osteitis fibrosa, osteodystrophia fibrosa, and Von Recklinghausen's disease of bone (not to be confused with Von Recklinghausen's disease, neurofibromatosis type I), is a skeletal disorder caused by hyperparathyroidism, which is a surplus of parathyroid hormone from over-active parathyroid glands. This surplus stimulates the activity of osteoclasts, cells that break down bone, in a process known as osteoclastic bone resorption. The hyperparathyroidism can be triggered by a parathyroid adenoma, hereditary factors, parathyroid carcinoma, or renal osteodystrophy. Osteoclastic bone resorption releases minerals, including calcium, from the bone into the bloodstream. In addition to elevated blood calcium levels, over-activity of this process results in a loss of bone mass, a weakening of the bones as their calcified supporting structures are replaced with fibrous tissue (peritrabecular fibrosis), and the formation of cyst-like brown tumors in and around the bone. The symptoms of the disease are the consequences of both the general softening of the bones and the excess calcium in the blood, and include bone fractures, kidney stones, nausea, moth-eaten appearance in the bones, appetite loss, and weight loss.
|ICD 9 Code:||252.01|
Osteitis fibrosa cystica of the tibia. Arrows point to the brown tumors which are typically present in bones of people with OFC.
Coding Notes for E21.0 Info for medical coders on how to properly use this ICD-10 code
Inclusion TermsInclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive.
- Hyperplasia of parathyroid
- Osteitis fibrosa cystica generalisata [von Recklinghausen's disease of bone]
- DRG Group #643-645 - Endocrine disorders with MCC.
- DRG Group #643-645 - Endocrine disorders with CC.
- DRG Group #643-645 - Endocrine disorders without CC or MCC.
Related Concepts SNOMET-CT
- Osteitis fibrosa cystica generalisata (disorder)
ICD-10-CM Alphabetical Index References for 'E21.0 - Primary hyperparathyroidism'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code E21.0. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official exact match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that in all cases where the ICD9 code 252.01 was previously used, E21.0 is the appropriate modern ICD10 code.