M11.1
M11.1 — Familial chondrocalcinosis
Non-billable headerICD-10-CM
M11.1 is a non-billable header ICD-10-CM code for familial chondrocalcinosis. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with M11.1
These codes carry an Excludes1 note pointing at M11.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M11.1 alone.
- E83.5Disorders of calcium metabolism
Risk adjustment
M11.1 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead M11.1
10 child codes. Green means billable.
- M11.10Familial chondrocalcinosis, unspecified site
- M11.11Familial chondrocalcinosis, shoulder
- M11.12Familial chondrocalcinosis, elbow
- M11.13Familial chondrocalcinosis, wrist
- M11.14Familial chondrocalcinosis, hand
- M11.15Familial chondrocalcinosis, hip
- M11.16Familial chondrocalcinosis, knee
- M11.17Familial chondrocalcinosis, ankle and foot
- M11.18Familial chondrocalcinosis, vertebrae
- M11.19Familial chondrocalcinosis, multiple sites
Related codes at this level
Codes that share M11. If M11.1 is not quite right, the correct code is usually one of these.
Questions about M11.1
- Is M11.1 a billable ICD-10-CM code?
- No. M11.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M11.1 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Inflammatory polyarthropathies (M05-M14).