M83.5 ICD-10-CM Code: Other drug-induced osteomalacia in adults
M83.5 is not a CMS-HCC payment code. MEAT criteria · RAF Calculator · HCC coding software
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FY 2026 Apr update / Diseases of the musculoskeletal system and connective tissue (M00-M99) / Disorders of bone density and structure (M80-M85)
M83.5
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceOther drug-induced osteomalacia in adults
Soft, weak bones in adults caused by medications or drugs that interfere with vitamin D metabolism and bone mineralization.
Buddy Insight
Other drug-induced osteomalacia represents bone softening caused by medications interfering with vitamin D metabolism or bone mineralization, indicating complex drug-disease interactions requiring medication review and bone health management.
CMS-HCC V28
N/A—
Not mapped
CMS-HCC V24
N/A—
Not mapped
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
N/A—
Not mapped
Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for M83.5 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for M83.5 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for M83.5 in this effective period.
Excludes 1
Official- infantile and juvenile osteomalacia (E55.0)
- renal osteodystrophy (N25.0)
- rickets (active) (E55.0)
- rickets (active) sequelae (E64.3)
- vitamin D-resistant osteomalacia (E83.31)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for M83.5 in this effective period.
Use Additional
Official- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Code Also
OfficialICD-10-CM does not list Code Also instructions for M83.5 in this effective period.
Buddy Documentation Tip
MEAT Support
Audit Caution
Common Mistakes
Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →
Is M83.5 an HCC code?
No. M83.5 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
- Code
- M83.5
- Description
- Other drug-induced osteomalacia in adults
- HCC (V28)
- No CMS-HCC V28 mapping
- RAF reference coefficient
- —
- Billable
- Yes
- Payment year
- 2026
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
M83.5 is the ICD-10-CM diagnosis code for other drug-induced osteomalacia in adults. Soft, weak bones in adults caused by medications or drugs that interfere with vitamin D metabolism and bone mineralization. M83.5 sits in the ICD-10-CM chapter for diseases of the musculoskeletal system and connective tissue (m00-m99), within the section covering disorders of bone density and structure (m80-m85).
M83.5 is a billable ICD-10-CM code, but the current payload does not show a mapping under the CMS-HCC V28, V24, ESRD, or RxHCC models. Do not assign risk adjustment value from this page when no source-backed mapping is shown; verify the applicable model and payment year.
This code does not map to a CMS-HCC V28 payment category. Capture depends on documentation that supports the diagnosis; verify the HCC assignment against the current CMS mapping for the applicable payment year. Coders reviewing M83.5 should check whether additional documentation would support a more specific child code in the same hierarchy that has a current source-backed HCC mapping. Code only the specificity supported by the provider documentation.
HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for M83.5 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Identify and document the specific drug causing osteomalacia (anticonvulsants, bisphosphonates, etc.)
- •Use with external cause codes to link to the causative medication
Clinical Significance
Other drug-induced osteomalacia represents bone softening caused by medications interfering with vitamin D metabolism or bone mineralization, indicating complex drug-disease interactions requiring medication review and bone health management. This diagnosis necessitates balancing essential medications with bone health preservation.
Documentation Requirements
- ✓Documentation of osteomalacia caused by specific medications
- ✓Identification of causative drug(s) and duration of use
- ✓Clinical or radiographic evidence of bone softening
- ✓Laboratory evidence supporting osteomalacia
- ✓Temporal relationship between drug use and bone disease
- ✓Treatment plan addressing medication management
- ✓Assessment of risk-benefit ratio for causative medications