FY2027
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ICD-10 Code for Myositis

The ICD-10-CM code for myositis is M60.9 — Myositis, unspecified. This is the code the Alphabetic Index gives for myositis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).

BillableUnspecified

M60.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.

Which myositis code should you use?

The Alphabetic Index lists 93 codes under Myositis. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.

By type

clostridialA48.0Gas gangrene
epidemicB33.0Epidemic myalgia
fibrosa or fibrous, Volkmann'sT79.6Not billableTraumatic ischemia of muscle
inclusion body [IBM]G72.41Inclusion body myositis [IBM]
infectiveM60.009Infective myositis, unspecified site
interstitialM60.10Interstitial myositis of unspecified site
mycoticB49Unspecified mycosis
orbital, chronicH05.12Not billableOrbital myositis
specified type NECM60.80Other myositis, unspecified site

Myositis in

bilharziasisB65.9Schistosomiasis, unspecified
cysticercosisB69.81Myositis in cysticercosis
leprosyA30.9Leprosy, unspecified
mycosisB49Unspecified mycosis
sarcoidosisD86.87Sarcoid myositis
schistosomiasisB65.9Schistosomiasis, unspecified
toxoplasmosisB58.82Toxoplasma myositis
trichinellosisB75Trichinellosis
tuberculosisA18.09Other musculoskeletal tuberculosis
syphilis › lateA52.78Syphilis of other musculoskeletal tissue
syphilis › secondaryA51.49Other secondary syphilitic conditions

Myositis infective

armM60.002Infective myositis, unspecified arm
legM60.005Infective myositis, unspecified leg
lower limbM60.005Infective myositis, unspecified leg
multiple sitesM60.09Infective myositis, multiple sites
specified site NECM60.08Infective myositis, other site
upper limbM60.002Infective myositis, unspecified arm
arm › leftM60.001Infective myositis, unspecified left arm
arm › rightM60.000Infective myositis, unspecified right arm
leg › leftM60.004Infective myositis, unspecified left leg
leg › rightM60.003Infective myositis, unspecified right leg
lower limb › ankleM60.07Not billableInfective myositis, ankle, foot and toes
lower limb › footM60.07Not billableInfective myositis, ankle, foot and toes
lower limb › lower legM60.06Not billableInfective myositis, lower leg
lower limb › thighM60.05Not billableInfective myositis, thigh
lower limb › toeM60.07Not billableInfective myositis, ankle, foot and toes
upper limb › fingerM60.04Not billableInfective myositis, hand and fingers
upper limb › forearmM60.03Not billableInfective myositis, forearm
upper limb › handM60.04Not billableInfective myositis, hand and fingers
upper limb › shoulder regionM60.01Not billableInfective myositis, shoulder
upper limb › upper armM60.02Not billableInfective myositis, upper arm

Myositis interstitial

ankleM60.17Not billableInterstitial myositis, ankle and foot
footM60.17Not billableInterstitial myositis, ankle and foot
forearmM60.13Not billableInterstitial myositis, forearm
handM60.14Not billableInterstitial myositis, hand
lower legM60.16Not billableInterstitial myositis, lower leg
multiple sitesM60.19Interstitial myositis, multiple sites
shoulder regionM60.11Not billableInterstitial myositis, shoulder
specified site NECM60.18Interstitial myositis, other site
thighM60.15Not billableInterstitial myositis, thigh
upper armM60.12Not billableInterstitial myositis, upper arm

Myositis ossificans or ossifying

progressivaM61.10Myositis ossificans progressiva, unspecified site
traumaticaM61.00Myositis ossificans traumatica, unspecified site
in › burnsM61.30Calcification and ossification of muscles associated with burns, unspecified site
in › quadriplegia or paraplegiaM61.20Paralytic calcification and ossification of muscle, unspecified site
progressiva › ankleM61.17Not billableMyositis ossificans progressiva, ankle, foot and toe(s)
progressiva › fingerM61.14Not billableMyositis ossificans progressiva, hand and finger(s)
progressiva › footM61.17Not billableMyositis ossificans progressiva, ankle, foot and toe(s)
progressiva › forearmM61.13Not billableMyositis ossificans progressiva, forearm
progressiva › handM61.14Not billableMyositis ossificans progressiva, hand and finger(s)
progressiva › lower legM61.16Not billableMyositis ossificans progressiva, lower leg
progressiva › multiple sitesM61.19Myositis ossificans progressiva, multiple sites
progressiva › pelvic regionM61.15Not billableMyositis ossificans progressiva, thigh
progressiva › shoulder regionM61.11Not billableMyositis ossificans progressiva, shoulder
progressiva › specified site NECM61.18Myositis ossificans progressiva, other site
progressiva › thighM61.15Not billableMyositis ossificans progressiva, thigh
progressiva › toeM61.17Not billableMyositis ossificans progressiva, ankle, foot and toe(s)
progressiva › upper armM61.12Not billableMyositis ossificans progressiva, upper arm
traumatica › ankleM61.07Not billableMyositis ossificans traumatica, ankle and foot
traumatica › footM61.07Not billableMyositis ossificans traumatica, ankle and foot
traumatica › forearmM61.03Not billableMyositis ossificans traumatica, forearm
traumatica › handM61.04Not billableMyositis ossificans traumatica, hand
traumatica › lower legM61.06Not billableMyositis ossificans traumatica, lower leg
traumatica › multiple sitesM61.09Myositis ossificans traumatica, multiple sites
traumatica › pelvic regionM61.05Not billableMyositis ossificans traumatica, thigh
traumatica › shoulder regionM61.01Not billableMyositis ossificans traumatica, shoulder
traumatica › specified site NECM61.08Myositis ossificans traumatica, other site
traumatica › thighM61.05Not billableMyositis ossificans traumatica, thigh
traumatica › upper armM61.02Not billableMyositis ossificans traumatica, upper arm
in › burns › ankleM61.37Not billableCalcification and ossification of muscles associated with burns, ankle and foot
in › burns › footM61.37Not billableCalcification and ossification of muscles associated with burns, ankle and foot
in › burns › forearmM61.33Not billableCalcification and ossification of muscles associated with burns, forearm
in › burns › handM61.34Not billableCalcification and ossification of muscles associated with burns, hand
in › burns › lower legM61.36Not billableCalcification and ossification of muscles associated with burns, lower leg
in › burns › multiple sitesM61.39Calcification and ossification of muscles associated with burns, multiple sites
in › burns › pelvic regionM61.35Not billableCalcification and ossification of muscles associated with burns, thigh
in › burns › shoulder regionM61.31Not billableCalcification and ossification of muscles associated with burns, shoulder
in › burns › specified site NECM61.38Calcification and ossification of muscles associated with burns, other site
in › burns › thighM61.35Not billableCalcification and ossification of muscles associated with burns, thigh
in › burns › upper armM61.32Not billableCalcification and ossification of muscles associated with burns, upper arm
in › quadriplegia or paraplegia › ankleM61.27Not billableParalytic calcification and ossification of muscle, ankle and foot
in › quadriplegia or paraplegia › footM61.27Not billableParalytic calcification and ossification of muscle, ankle and foot
in › quadriplegia or paraplegia › forearmM61.23Not billableParalytic calcification and ossification of muscle, forearm
in › quadriplegia or paraplegia › handM61.24Not billableParalytic calcification and ossification of muscle, hand
in › quadriplegia or paraplegia › lower legM61.26Not billableParalytic calcification and ossification of muscle, lower leg
in › quadriplegia or paraplegia › multiple sitesM61.29Paralytic calcification and ossification of muscle, multiple sites
in › quadriplegia or paraplegia › pelvic regionM61.25Not billableParalytic calcification and ossification of muscle, thigh
in › quadriplegia or paraplegia › shoulder regionM61.21Not billableParalytic calcification and ossification of muscle, shoulder
in › quadriplegia or paraplegia › specified site NECM61.28Paralytic calcification and ossification of muscle, other site
in › quadriplegia or paraplegia › thighM61.25Not billableParalytic calcification and ossification of muscle, thigh
in › quadriplegia or paraplegia › upper armM61.22Not billableParalytic calcification and ossification of muscle, upper arm

Myositis specified type NEC

ankleM60.87Not billableOther myositis, ankle and foot
footM60.87Not billableOther myositis, ankle and foot
forearmM60.83Not billableOther myositis, forearm
handM60.84Not billableOther myositis, hand
lower legM60.86Not billableOther myositis, lower leg
multiple sitesM60.89Other myositis, multiple sites
pelvic regionM60.85Not billableOther myositis, thigh
shoulder regionM60.81Not billableOther myositis shoulder
specified site NECM60.88Other myositis, other site
thighM60.85Not billableOther myositis, thigh
upper armM60.82Not billableOther myositis, upper arm

Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources