Other crystal arthropathies (M11) ICD-10-CM
The M11 code range covers other crystal arthropathies with 130 ICD-10-CM diagnosis codes. 97 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the M11 Range 130 codes · 97 billable
- M11 Other crystal arthropathiesNon-billable
- M11.0 Hydroxyapatite deposition diseaseNon-billable
- M11.00 Hydroxyapatite deposition disease, unspecified site
- M11.01 Hydroxyapatite deposition disease, shoulderNon-billable
- M11.011 Hydroxyapatite deposition disease, right shoulder
- M11.012 Hydroxyapatite deposition disease, left shoulder
- M11.019 Hydroxyapatite deposition disease, unspecified shoulder
- M11.02 Hydroxyapatite deposition disease, elbowNon-billable
- M11.021 Hydroxyapatite deposition disease, right elbow
- M11.022 Hydroxyapatite deposition disease, left elbow
- M11.029 Hydroxyapatite deposition disease, unspecified elbow
- M11.03 Hydroxyapatite deposition disease, wristNon-billable
- M11.031 Hydroxyapatite deposition disease, right wrist
- M11.032 Hydroxyapatite deposition disease, left wrist
- M11.039 Hydroxyapatite deposition disease, unspecified wrist
- M11.04 Hydroxyapatite deposition disease, handNon-billable
- M11.041 Hydroxyapatite deposition disease, right hand
- M11.042 Hydroxyapatite deposition disease, left hand
- M11.049 Hydroxyapatite deposition disease, unspecified hand
- M11.05 Hydroxyapatite deposition disease, hipNon-billable
- M11.051 Hydroxyapatite deposition disease, right hip
- M11.052 Hydroxyapatite deposition disease, left hip
- M11.059 Hydroxyapatite deposition disease, unspecified hip
- M11.06 Hydroxyapatite deposition disease, kneeNon-billable
- M11.061 Hydroxyapatite deposition disease, right knee
- M11.062 Hydroxyapatite deposition disease, left knee
- M11.069 Hydroxyapatite deposition disease, unspecified knee
- M11.07 Hydroxyapatite deposition disease, ankle and footNon-billable
- M11.071 Hydroxyapatite deposition disease, right ankle and foot
- M11.072 Hydroxyapatite deposition disease, left ankle and foot
- M11.079 Hydroxyapatite deposition disease, unspecified ankle and foot
- M11.08 Hydroxyapatite deposition disease, vertebrae
- M11.09 Hydroxyapatite deposition disease, multiple sites
- M11.1 Familial chondrocalcinosisNon-billable
- M11.10 Familial chondrocalcinosis, unspecified site
- M11.11 Familial chondrocalcinosis, shoulderNon-billable
- M11.111 Familial chondrocalcinosis, right shoulder
- M11.112 Familial chondrocalcinosis, left shoulder
- M11.119 Familial chondrocalcinosis, unspecified shoulder
- M11.12 Familial chondrocalcinosis, elbowNon-billable
- M11.121 Familial chondrocalcinosis, right elbow
- M11.122 Familial chondrocalcinosis, left elbow
- M11.129 Familial chondrocalcinosis, unspecified elbow
- M11.13 Familial chondrocalcinosis, wristNon-billable
- M11.131 Familial chondrocalcinosis, right wrist
- M11.132 Familial chondrocalcinosis, left wrist
- M11.139 Familial chondrocalcinosis, unspecified wrist
- M11.14 Familial chondrocalcinosis, handNon-billable
- M11.141 Familial chondrocalcinosis, right hand
- M11.142 Familial chondrocalcinosis, left hand
- M11.149 Familial chondrocalcinosis, unspecified hand
- M11.15 Familial chondrocalcinosis, hipNon-billable
- M11.151 Familial chondrocalcinosis, right hip
- M11.152 Familial chondrocalcinosis, left hip
- M11.159 Familial chondrocalcinosis, unspecified hip
- M11.16 Familial chondrocalcinosis, kneeNon-billable
- M11.161 Familial chondrocalcinosis, right knee
- M11.162 Familial chondrocalcinosis, left knee
- M11.169 Familial chondrocalcinosis, unspecified knee
- M11.17 Familial chondrocalcinosis, ankle and footNon-billable
- M11.171 Familial chondrocalcinosis, right ankle and foot
- M11.172 Familial chondrocalcinosis, left ankle and foot
- M11.179 Familial chondrocalcinosis, unspecified ankle and foot
- M11.18 Familial chondrocalcinosis, vertebrae
- M11.19 Familial chondrocalcinosis, multiple sites
- M11.2 Other chondrocalcinosisNon-billable
- M11.20 Other chondrocalcinosis, unspecified site
- M11.21 Other chondrocalcinosis, shoulderNon-billable
- M11.211 Other chondrocalcinosis, right shoulder
- M11.212 Other chondrocalcinosis, left shoulder
- M11.219 Other chondrocalcinosis, unspecified shoulder
- M11.22 Other chondrocalcinosis, elbowNon-billable
- M11.221 Other chondrocalcinosis, right elbow
- M11.222 Other chondrocalcinosis, left elbow
- M11.229 Other chondrocalcinosis, unspecified elbow
- M11.23 Other chondrocalcinosis, wristNon-billable
- M11.231 Other chondrocalcinosis, right wrist
- M11.232 Other chondrocalcinosis, left wrist
- M11.239 Other chondrocalcinosis, unspecified wrist
- M11.24 Other chondrocalcinosis, handNon-billable
- M11.241 Other chondrocalcinosis, right hand
- M11.242 Other chondrocalcinosis, left hand
- M11.249 Other chondrocalcinosis, unspecified hand
- M11.25 Other chondrocalcinosis, hipNon-billable
- M11.251 Other chondrocalcinosis, right hip
- M11.252 Other chondrocalcinosis, left hip
- M11.259 Other chondrocalcinosis, unspecified hip
- M11.26 Other chondrocalcinosis, kneeNon-billable
- M11.261 Other chondrocalcinosis, right knee
- M11.262 Other chondrocalcinosis, left knee
- M11.269 Other chondrocalcinosis, unspecified knee
- M11.27 Other chondrocalcinosis, ankle and footNon-billable
- M11.271 Other chondrocalcinosis, right ankle and foot
- M11.272 Other chondrocalcinosis, left ankle and foot
- M11.279 Other chondrocalcinosis, unspecified ankle and foot
- M11.28 Other chondrocalcinosis, vertebrae
- M11.29 Other chondrocalcinosis, multiple sites
- M11.8 Other specified crystal arthropathiesNon-billable
- M11.80 Other specified crystal arthropathies, unspecified site
- M11.81 Other specified crystal arthropathies, shoulderNon-billable
- M11.811 Other specified crystal arthropathies, right shoulder
- M11.812 Other specified crystal arthropathies, left shoulder
- M11.819 Other specified crystal arthropathies, unspecified shoulder
- M11.82 Other specified crystal arthropathies, elbowNon-billable
- M11.821 Other specified crystal arthropathies, right elbow
- M11.822 Other specified crystal arthropathies, left elbow
- M11.829 Other specified crystal arthropathies, unspecified elbow
- M11.83 Other specified crystal arthropathies, wristNon-billable
- M11.831 Other specified crystal arthropathies, right wrist
- M11.832 Other specified crystal arthropathies, left wrist
- M11.839 Other specified crystal arthropathies, unspecified wrist
- M11.84 Other specified crystal arthropathies, handNon-billable
- M11.841 Other specified crystal arthropathies, right hand
- M11.842 Other specified crystal arthropathies, left hand
- M11.849 Other specified crystal arthropathies, unspecified hand
- M11.85 Other specified crystal arthropathies, hipNon-billable
- M11.851 Other specified crystal arthropathies, right hip
- M11.852 Other specified crystal arthropathies, left hip
- M11.859 Other specified crystal arthropathies, unspecified hip
- M11.86 Other specified crystal arthropathies, kneeNon-billable
- M11.861 Other specified crystal arthropathies, right knee
- M11.862 Other specified crystal arthropathies, left knee
- M11.869 Other specified crystal arthropathies, unspecified knee
- M11.87 Other specified crystal arthropathies, ankle and footNon-billable
- M11.871 Other specified crystal arthropathies, right ankle and foot
- M11.872 Other specified crystal arthropathies, left ankle and foot
- M11.879 Other specified crystal arthropathies, unspecified ankle and foot
- M11.88 Other specified crystal arthropathies, vertebrae
- M11.89 Other specified crystal arthropathies, multiple sites
- M11.9 Crystal arthropathy, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the M11 range.
Chondrocalcinosis
Presence of CALCIUM PYROPHOSPHATE in the connective tissues such as the cartilaginous structures of joints. When accompanied by GOUT-like symptoms, it is referred to as pseudogout.
Crystal Arthropathies
Joint disorders that are characterized by accumulation of microcrystals in and around the joint including in the SYNOVIAL FLUID. They are classified according to the chemical nature of the crystals such as CALCIUM PYROPHOSPHATE; basic CALCIUM PHOSPHATES; and monosodium urate (see URIC ACID).
About the M11 Code Range
The ICD-10 code section M11 covers various types of crystal arthropathies other than gout, including hydroxyapatite deposition disease, familial chondrocalcinosis, and other specified or unspecified chondrocalcinosis. These codes help identify and classify joint disorders caused by the buildup of different types of crystals in specific body sites.
This group of codes ranges from general diagnoses like M11 (Other crystal arthropathies) to site-specific codes such as M11.011 for hydroxyapatite deposition disease in the right shoulder, or M11.131 for familial chondrocalcinosis in the right wrist. The inclusion of synonyms such as “apatite-associated destructive arthritis,” “chondrocalcinosis,” and “calcium pyrophosphate deposition disease” clarifies coding choices when these common terms appear in clinical records. These codes allow precise documentation for conditions like chondrocalcinosis due to calcium crystal deposits, aiding providers and coders in distinguishing these crystal-induced arthropathies from gout and other joint diseases. The ICD-10 code for crystal arthropathy unspecified, M11.9, covers cases where the exact crystal type or site is not documented.
Questions About This Page
How many billable codes are in the M11 range?
Of the 130 codes in this range, 97 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 M11 range classify?
The range classifies other crystal arthropathies. 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.
