2019 ICD-10-CM Diagnosis Code M79.9

Soft tissue disorder, unspecified

    2016 2017 2018 2019 Billable/Specific Code
  • M79.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM M79.9 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of M79.9 - other international versions of ICD-10 M79.9 may differ.
The following code(s) above M79.9 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to M79.9:
  • M00-M99
    2019 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
    Type 2 Excludes
    • 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)
    Diseases of the musculoskeletal system and connective tissue
  • M79
    ICD-10-CM Diagnosis Code M79

    Other and unspecified soft tissue disorders, not elsewhere classified

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • psychogenic rheumatism (F45.8)
    • soft tissue pain, psychogenic (F45.41)
    Other and unspecified soft tissue disorders, not elsewhere classified
Approximate Synonyms
  • Disease of musculoskeletal system
  • Disease of oral soft tissues
  • Disorder of musculoskeletal system
  • Disorder of oral soft tissues
  • Disorder of soft tissue
  • Mass of pelvic joint
  • Mass of pelvis bone
  • Mass of soft tissue
  • Mass of soft tissue of bilateral arms
  • Mass of soft tissue of bilateral legs
  • Mass of soft tissue of bilateral lower limbs
  • Mass of soft tissue of left leg
  • Mass of soft tissue of left lower limb
  • Mass of soft tissue of right leg
  • Mass of soft tissue of right lower limb
  • Mass of soft tissue of upper limb
  • Muscle mass of limb
  • Musculoskeletal system disease
  • Soft tissue disorder
  • Soft tissue mass
  • Soft tissue swelling
ICD-10-CM M79.9 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 555 Signs and symptoms of musculoskeletal system and connective tissue with mcc
  • 556 Signs and symptoms of musculoskeletal system and connective tissue without mcc

Convert M79.9 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change

Diagnosis Index entries containing back-references to M79.9:
  • Disorder (of) - see also Disease
    • soft tissue M79.9
      • ankle M79.9
      • foot M79.9
      • forearm M79.9
      • hand M79.9
      • lower leg M79.9
      • multiple sites M79.9
      • pelvic region M79.9
      • shoulder region M79.9
      • thigh M79.9
      • upper arm M79.9

ICD-10-CM Codes Adjacent To M79.9
M79.A19 Nontraumatic compartment syndrome of unspecified upper extremity
M79.A2 Nontraumatic compartment syndrome of lower extremity
M79.A21 Nontraumatic compartment syndrome of right lower extremity
M79.A22 Nontraumatic compartment syndrome of left lower extremity
M79.A29 Nontraumatic compartment syndrome of unspecified lower extremity
M79.A3 …… of abdomen
M79.A9 …… of other sites
M79.8 Other specified soft tissue disorders
M79.81 Nontraumatic hematoma of soft tissue
M79.89 Other specified soft tissue disorders
M79.9 Soft tissue disorder, unspecified
M80 Osteoporosis with current pathological fracture
M80.0 Age-related osteoporosis with current pathological fracture
M80.00 Age-related osteoporosis with current pathological fracture, unspecified site
M80.00XA …… initial encounter for fracture
M80.00XD …… subsequent encounter for fracture with routine healing
M80.00XG …… subsequent encounter for fracture with delayed healing
M80.00XK …… subsequent encounter for fracture with nonunion
M80.00XP …… subsequent encounter for fracture with malunion
M80.00XS …… sequela
M80.01 Age-related osteoporosis with current pathological fracture, shoulder

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.