---
title: Osteoporosis References
url: https://share.jotbird.com/soft-steady-mesa-willow
updated_at: 2026-07-03T23:20:53.929152+00:00
---
## Osteoporosis ICD-10 Code Construction Reference
### M80 Osteoporosis with current pathological fracture
| Character Position | Meaning | Values |
| -------------------- | ----------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **4th (Etiology)** | Underlying cause | 0 = Age-related
8 = Other/secondary |
| **5th (Site)** | Fracture location | 0/9 = Unspecified
1 = Shoulder
2 = Humerus
3 = Forearm
4 = Hand
5 = Femur
6 = Lower leg
7 = Ankle/foot
8 = Vertebrae |
| **6th (Laterality)** | Side | 1 = Right
2 = Left
9 = Unspecified
X = for site 8 |
| **7th (Encounter)** | Episode of care | A = Initial
D = Subsequent (routine healing)
G = Delayed healing
K = Nonunion
P = Malunion
S = Sequela |
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### M81 Osteoporosis with No Current Fracture
| Etiology (4th Character) | Description |
| ------------------------ | ------------------------ |
| 0 | Age-related |
| 6 | Localized (e.g., CRPS-1) |
| 8 | Other/secondary |
*No site, laterality, or encounter characters required except M81.6.*
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### M85 Osteopenia
| Code | Description |
| ---------- | --------------------------------------------------------------- |
| **M85.8** | Other specified disorders of bone density (includes osteopenia) |
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## Secondary Etiology & Status Codes
### Etiology
| Clinical Scenario | Primary Code | Required Secondary Codes
| --------------------------------------- | --------------- | --------------------------------------- |
| **Glucocorticoid-induced** | M80.8- or M81.8 | T38 (adverse effect of glucocorticoids)
| **Post-oophorectomy** | M80.8- or M81.8 | Z90.721
| **Postsurgical malabsorption** | M80.8- or M81.8 | Z98.84, Z90.3, Z90.49 etc.
| **Endocrine disorders** | M80.8- or M81.8 | E21.0, E21.1, E05.90, E24.9 etc.
| **Active osteoporosis therapy** | M80 or M81 | Z79.83
| **Prior healed fracture** | M80 or M81 | Z87.311
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### Fall & Mobility Risk
| Code | Meaning |
| ------ | ------------------------ |
| Z91.81 | History of falling |
| R29.6 | Repeated falls |
| R26.81 | Unsteady gait |
| R26.89 | Other gait abnormalities |
| Z74.01 | Bed/chair confinement |
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### History & Genetics
| Code | Meaning |
| ------ | ------------------------------ |
| Z82.62 | Family history of osteoporosis |
---
### Medication use (no causality)
| Code | Meaning |
| ------- | ------------------------------------------------------ |
| Z79.52 | Long-term corticosteroids (≥5 mg prednisone ≥3 months) |
| Z79.811 | Aromatase inhibitors |
| Z79.810 | SERMs |
| Z79.89 | Other long-term therapies (e.g., ADT) |