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M66.1

Non-billable

Rupture of synovium

Rupture of synovium

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

M65-M67

Parent Code

M66

Child Codes

8

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Rupture of synovial cyst

Includes

Conditions included under this code

  • rupture that occurs when a normal force is applied to tissues that are inferred to have less than normal strength

Excludes 2

Conditions not included here, but the patient may have both

  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • rotator cuff syndrome (M75.1-)
  • rupture where an abnormal force is applied to normal tissue - see injury of tendon by body region
  • rupture of popliteal cyst (M66.0)

Child Codes (8)

M66.10

Rupture of synovium, unspecified joint

BillableM66.11

Rupture of synovium, shoulder

M66.12

Rupture of synovium, elbow

M66.13

Rupture of synovium, wrist

M66.14

Rupture of synovium, hand and fingers

M66.15

Rupture of synovium, hip

M66.17

Rupture of synovium, ankle, foot and toes

M66.18

Rupture of synovium, other site

Billable

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code M66.1?

ICD-10-CM code M66.1 represents "Rupture of synovium". It is a non-billable header code — use a more specific child code for billing purposes.

Is M66.1 a billable code?

No, M66.1 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 8 child codes under M66.1.

What chapter is M66.1 in?

M66.1 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).

What are the subcategories under M66.1?

M66.1 has 8 child codes, including: M66.10 (Rupture of synovium, unspecified joint), M66.11 (Rupture of synovium, shoulder), M66.12 (Rupture of synovium, elbow), M66.13 (Rupture of synovium, wrist), and 4 more.

What are the UMLS CUIs for M66.1?

M66.1 is linked to 2 UMLS Concept Unique Identifiers: C1394433, C0158337. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.