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
HistoricalHistorical
Not used for CY2026 payment
ACA/HHS
N/A—
Not mapped
ESRD/PACE
N/A—
Not mapped
RXHCC
Context neededHCC 87
Coefficient needs member context
Code Book Path
Inclusion Terms
OfficialNo inclusion terms are included in this display for M83.5. Check the code and parent instructions in the Code Book.
Excludes 2
Official- arthropathic psoriasis (L40.5-)Inherited from M00-M99
- certain conditions originating in the perinatal period (P04-P96)Inherited from M00-M99
- certain infectious and parasitic diseases (A00-B99)Inherited from M00-M99
- compartment syndrome (traumatic) (T79.A-)Inherited from M00-M99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)Inherited from M00-M99
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Inherited from M00-M99
- endocrine, nutritional and metabolic diseases (E00-E88)Inherited from M00-M99
- injury, poisoning and certain other consequences of external causes (S00-T88)Inherited from M00-M99
- neoplasms (C00-D49)Inherited from M00-M99
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)Inherited from M00-M99
Related Codes
Includes
OfficialNo Includes notes are included in this display for M83.5. Check the code and parent instructions in the Code Book.
Excludes 1
Official- infantile and juvenile osteomalacia (E55.0)Inherited from M83
- renal osteodystrophy (N25.0)Inherited from M83
- rickets (active) (E55.0)Inherited from M83
- rickets (active) sequelae (E64.3)Inherited from M83
- vitamin D-resistant osteomalacia (E83.31)Inherited from M83
- vitamin D-resistant rickets (active) (E83.31)Inherited from M83
Code First
OfficialNo Code First sequencing instructions are included in this display for M83.5. Check the code and parent instructions in the Code Book.
Use Additional
Official- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Code Also
OfficialNo Code Also instructions are included in this display for M83.5. Check the code and parent instructions in the Code Book.
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?
M83.5 has no mapping under the current CMS-HCC V28 community payment model. M83.5 has a separate mapping under the Part D RxHCC model (HCC 87 (Osteoporosis, Vertebral and Pathological Fractures)); the applicable result needs member context.
- 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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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 has no mapping under the current CMS-HCC V28 community payment model. M83.5 has a separate mapping under the Part D RxHCC model (HCC 87 (Osteoporosis, Vertebral and Pathological Fractures)); the applicable result needs member context. Do not assign V28 risk adjustment value from this page; verify the applicable model and payment year before using this code for risk adjustment.
Identify and document the specific drug causing osteomalacia (anticonvulsants, bisphosphonates, etc.).
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