Adult osteomalacia (M83) ICD-10-CM
The M83 code range covers adult osteomalacia with 9 ICD-10-CM diagnosis codes. 8 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the M83 Range 9 codes · 8 billable
- M83 Adult osteomalaciaNon-billable
- M83.0 Puerperal osteomalacia
- M83.1 Senile osteomalacia
- M83.2 Adult osteomalacia due to malabsorption
- M83.3 Adult osteomalacia due to malnutrition
- M83.4 Aluminum bone disease
- M83.5 Other drug-induced osteomalacia in adults
- M83.8 Other adult osteomalacia
- M83.9 Adult osteomalacia, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the M83 range.
Chronic Kidney Disease-Mineral and Bone Disorder
Decalcification of bone or abnormal bone development due to chronic KIDNEY DISEASES, in which 1,25-DIHYDROXYVITAMIN D3 synthesis by the kidneys is impaired, leading to reduced negative feedback on PARATHYROID HORMONE. The resulting SECONDARY HYPERPARATHYROIDISM eventually leads to bone disorders.
Familial Hypophosphatemic Rickets
A hereditary disorder characterized by HYPOPHOSPHATEMIA; RICKETS; OSTEOMALACIA; renal defects in phosphate reabsorption and vitamin D metabolism; and growth retardation. Autosomal and X-linked dominant and recessive variants have been reported.
Osteomalacia
Disorder caused by an interruption of the mineralization of organic bone matrix leading to bone softening, bone pain, and weakness. It is the adult form of rickets resulting from disruption of VITAMIN D; PHOSPHORUS; or CALCIUM homeostasis.
Rickets
Disorders caused by interruption of BONE MINERALIZATION manifesting as OSTEOMALACIA in adults and characteristic deformities in infancy and childhood due to disturbances in normal BONE FORMATION. The mineralization process may be interrupted by disruption of VITAMIN D; PHOSPHORUS; or CALCIUM homeostasis, resulting from dietary deficiencies, or acquired, or inherited metabolic, or hormonal disturbances.
Rickets, Hypophosphatemic
A disorder characterized by HYPOPHOSPHATEMIA; RICKETS; OSTEOMALACIA; resulting from lack of phosphate reabsorption by the kidneys and possible defects in vitamin D metabolism.
About the M83 Code Range
M83 codes identify different types of adult osteomalacia, a condition characterized by softening of the bones due to defective bone mineralization. These ICD-10 codes cover causes ranging from nutritional deficiencies to drug-induced and disease-related osteomalacia in adults.
The category includes M83.0 for puerperal osteomalacia, which affects mothers during or after pregnancy. M83.1 defines senile osteomalacia, commonly seen in elderly adults. Codes M83.2 and M83.3 specify osteomalacia caused by malabsorption and malnutrition, respectively, the latter also known as vitamin D deficiency osteomalacia. M83.4 covers aluminum bone disease, linked to aluminum exposure affecting bone health. Drug-related causes are coded at M83.5, including anticonvulsant-induced forms. For other specific adult osteomalacia types, such as those stemming from liver or endocrine diseases or tumors, M83.8 is used. When the exact cause is unclear or unspecified, M83.9 applies. These codes help medical coders accurately classify various presentations and underlying causes of adult osteomalacia.
Questions About This Page
How many billable codes are in the M83 range?
Of the 9 codes in this range, 8 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the M83 range classify?
The range classifies adult osteomalacia. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
