ICD-10-CM 2027
ICD-10 code for soft tissue disorder
From the official ICD-10-CM alphabetic index entry “Disorder (of) › soft tissue”. Page updated September 29, 2026.
About coding soft tissue disorder
The ICD-10-CM code for soft tissue disorder is M79.9 (Soft tissue disorder, unspecified). The official index lists 35 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M79.9.
Within M79, choose M79.9 (Soft tissue disorder, unspecified) only when documentation doesn't support a more specific option: rheumatism, unspecified (M79.0), myalgia (M79.1), neuralgia and neuritis, unspecified (M79.2), panniculitis, unspecified (M79.3), hypertrophy of (infrapatellar) fat pad (M79.4), residual foreign body in soft tissue (M79.5), pain in limb, hand, foot, fingers and toes (M79.6), Fibromyalgia (M79.7) and 2 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 555 (Signs and Symptoms of Musculoskeletal System and Connective Tissue with MCC, relative weight 1.2913) and DRG 556 (Signs and Symptoms of Musculoskeletal System and Connective Tissue without MCC, relative weight 0.8211), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific soft tissue disorder codes (official index)
- ankle M79.9 — Soft tissue disorder, unspecified
- due to use, overuse and pressure M70.90 — Unspecified soft tissue disorder related to use, overuse and pressure of unspecified site
- ankle M70.97 — Unspecified soft tissue disorder related to use, overuse and pressure of ankle and foot
- bursitis
- foot M70.97 — Unspecified soft tissue disorder related to use, overuse and pressure of ankle and foot
- forearm M70.93 — Unspecified soft tissue disorder related to use, overuse and pressure of forearm
- hand M70.94 — Unspecified soft tissue disorder related to use, overuse and pressure of hand
- lower leg M70.96 — Unspecified soft tissue disorder related to use, overuse and pressure lower leg
- multiple sites M70.99 — Unspecified soft tissue disorder related to use, overuse and pressure multiple sites
- pelvic region M70.95 — Unspecified soft tissue disorder related to use, overuse and pressure of thigh
- shoulder region M70.91 — Unspecified soft tissue disorder related to use, overuse and pressure of shoulder
- specified site NEC M70.98 — Unspecified soft tissue disorder related to use, overuse and pressure other
- specified type NEC M70.80 — Other soft tissue disorders related to use, overuse and pressure of unspecified site
- ankle M70.87 — Other soft tissue disorders related to use, overuse and pressure of ankle and foot
- foot M70.87 — Other soft tissue disorders related to use, overuse and pressure of ankle and foot
- forearm M70.83 — Other soft tissue disorders related to use, overuse and pressure of forearm
- hand M70.84 — Other soft tissue disorders related to use, overuse and pressure of hand
- lower leg M70.86 — Other soft tissue disorders related to use, overuse and pressure lower leg
- multiple sites M70.89 — Other soft tissue disorders related to use, overuse and pressure multiple sites
- pelvic region M70.85 — Other soft tissue disorders related to use, overuse and pressure of thigh
- shoulder region M70.81 — Other soft tissue disorders related to use, overuse and pressure of shoulder
- specified site NEC M70.88 — Other soft tissue disorders related to use, overuse and pressure other site
- thigh M70.85 — Other soft tissue disorders related to use, overuse and pressure of thigh
- upper arm M70.82 — Other soft tissue disorders related to use, overuse and pressure of upper arm
- thigh M70.95 — Unspecified soft tissue disorder related to use, overuse and pressure of thigh
- upper arm M70.92 — Unspecified soft tissue disorder related to use, overuse and pressure of upper arm
- foot M79.9 — Soft tissue disorder, unspecified
- forearm M79.9 — Soft tissue disorder, unspecified
- hand M79.9 — Soft tissue disorder, unspecified
- lower leg M79.9 — Soft tissue disorder, unspecified
- multiple sites M79.9 — Soft tissue disorder, unspecified
- occupational
- pelvic region M79.9 — Soft tissue disorder, unspecified
- shoulder region M79.9 — Soft tissue disorder, unspecified
- specified type NEC M79.89 — Other specified soft tissue disorders
- thigh M79.9 — Soft tissue disorder, unspecified
- upper arm M79.9 — Soft tissue disorder, unspecified
Common questions about soft tissue disorder ICD-10 codes
What is the ICD-10 code for soft tissue disorder?
- M79.9 — Soft tissue disorder, unspecified. More specific codes apply when the documentation supports them: M79.9, M70.90, M70.97, M70.97 and others below.
What is the ICD-10 code for ankle soft tissue disorder?
- M79.9 — Soft tissue disorder, unspecified.
What is the ICD-10 code for foot soft tissue disorder?
- M79.9 — Soft tissue disorder, unspecified.
What is the ICD-10 code for forearm soft tissue disorder?
- M79.9 — Soft tissue disorder, unspecified.
What is the ICD-10 code for hand soft tissue disorder?
- M79.9 — Soft tissue disorder, unspecified.
What is the ICD-10 code for lower leg soft tissue disorder?
- M79.9 — Soft tissue disorder, unspecified.
What is the ICD-10 code for multiple sites soft tissue disorder?
- M79.9 — Soft tissue disorder, unspecified.
Is M79.9 billable?
- Yes. M79.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M79.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M79.9 as a principal diagnosis.
Is M79.9 a CC or MCC?
- No. M79.9 is neither a CC nor an MCC under MS-DRG v44.0.